WO2018163588A1 - チューナモジュール及び受信装置 - Google Patents
チューナモジュール及び受信装置 Download PDFInfo
- Publication number
- WO2018163588A1 WO2018163588A1 PCT/JP2018/000163 JP2018000163W WO2018163588A1 WO 2018163588 A1 WO2018163588 A1 WO 2018163588A1 JP 2018000163 W JP2018000163 W JP 2018000163W WO 2018163588 A1 WO2018163588 A1 WO 2018163588A1
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- WO
- WIPO (PCT)
- Prior art keywords
- tuner module
- tuner
- case body
- module according
- electrode
- Prior art date
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Classifications
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/64—Constructional details of receivers, e.g. cabinets or dust covers
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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
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
Definitions
- the present disclosure relates to a tuner module and a receiving device.
- a tuner module used in a television apparatus or the like for example, a module described in Patent Document 1 has been proposed.
- the tuner module described in Patent Document 1 is such that after the pin portion is inserted into the hole portion of the circuit board, the pin portion is attached to the circuit board by soldering.
- Patent Document 1 When the fixing method of Patent Document 1 is used, for example, when a variation occurs in the substrate on which the tuner module is mounted, there is a problem that the substrate must be designed and prototyped each time. In general, it is desired that the tuner module be attached by a simple facility and method.
- This disclosure is intended to provide a tuner module and a receiving device that can be attached to a substrate or the like with as simple an equipment and method as possible.
- the case body has a plate-like portion in which a hole portion into which the screwing member is inserted is formed, A tuner module in which a plurality of protrusions are provided apart from each other at the peripheral edge of the hole.
- the receiving device includes the above-described tuner module, a metal chassis to which the tuner module is attached by a screwing member, and a substrate to which the tuner module substrate is connected.
- the tuner module can be securely attached to the substrate or the metal chassis by the simplest equipment and method.
- the effects described here are not necessarily limited, and may be any effects described in the present disclosure. Further, the contents of the present disclosure are not construed as being limited by the exemplified effects.
- FIG. 1A, 1B, and 1C are diagrams schematically showing a tuner module connected to a receiving board.
- FIG. 2 is a diagram for describing a technique related to the present disclosure.
- FIG. 3 is a perspective view for explaining the tuner module according to the first embodiment of the present disclosure.
- FIG. 4A is a diagram showing a shape of a general embossed portion
- FIG. 4B is a diagram for explaining an event caused by the shape of a general embossed portion.
- FIG. 5A is a perspective view for explaining the embossed portion according to the first embodiment of the present disclosure
- FIG. 5B is a top view for explaining the embossed portion according to the first embodiment of the present disclosure. is there.
- FIG. 6A is a cross-sectional view illustrating a state in which a screw is screwed in the first embodiment of the present disclosure
- FIG. 6B is a diagram for explaining an action of a force in a state in which the screw is screwed.
- FIG. 7A and FIG. 7B are views showing a state in which a portion to which a screw is screwed is shifted.
- FIG. 8 is a diagram for explaining that the protrusion supports the washer even when the screwed portion is displaced.
- FIG. 9 is a diagram for explaining that the protrusion supports the washer even when the screwed portion is displaced.
- FIG. 10A and FIG. 10B are diagrams for explaining a modification of the first embodiment.
- FIG. 11B are diagrams for explaining a modification of the first embodiment.
- FIG. 12 is a cross-sectional view for explaining the configuration of a general IEC connector.
- FIG. 13 is a cross-sectional view for explaining a configuration example of an IEC connector according to the second embodiment of the present disclosure.
- FIG. 14 is an exploded perspective view for explaining a configuration example of the IEC connector according to the second embodiment of the present disclosure.
- FIG. 15 is a partially enlarged view for explaining a configuration example of the IEC connector according to the second embodiment of the present disclosure.
- the tuner module 1a in FIG. 1A is a two-circuit (dual) tuner module corresponding to the DVB-T (Digital Video-Broadcasting-Terrestrial) 2 standard.
- the tuner module 1b in FIG. 1B is a one-circuit tuner module corresponding to the DVB-T2 standard.
- a tuner module 1c in FIG. 1C is a tuner module corresponding to the DVB-T standard.
- the reception board 2a in FIG. 1A is a board on which a circuit for processing a broadcast signal corresponding to the DVB-T2 standard (a circuit corresponding to two inputs) is mounted.
- a reception board 2b in FIG. 1B is a board on which a circuit (circuit corresponding to one input) for processing a broadcast signal corresponding to the DVB-T2 standard is mounted.
- a reception board 2c in FIG. 1C is a board on which a circuit for processing a broadcast signal corresponding to the DVB-T standard is mounted.
- the receiving boards 2a to 2c are generally provided on the back side of the display of the television device. As described above, a corresponding tuner module is attached to each receiving board by soldering.
- the tuning circuit part built in the tuner module has different models depending on the purpose of dealing with different frequency assignments depending on the country and region, and variations in specifications such as 1 circuit reception and 2 circuit reception. Since it must be done, it is used separately for each tuner module. That is, while using the same circuit configuration using the same SoC, the same type of receiving board (three types in this example) as the type of tuner module to be mounted is required.
- the tuner module is electrically connected to the receiving board using the connection method described below.
- a connection method in the present embodiment will be described with reference to FIG.
- a tuner module 3a in FIG. 2 is a three-circuit tuner module corresponding to the DVB-T2 standard.
- the tuner modules 3b and 3c are one-circuit tuner modules corresponding to the DVB-T2 standard. However, the tuner modules 3b and 3c have different version numbers, and have the same external shape but different internal configurations.
- the tuner module 3d is a one-circuit tuner module corresponding to DVB-T.
- the tuner module 3a has a metal case body 4a.
- a tuner module substrate on which a tuner function unit is formed is accommodated in the case body 4a.
- the terminal part 5a of the tuner module substrate is exposed outside the case body 4a.
- the screwing part 6a is provided in the edge part (For example, the location of the vicinity of the location where the terminal part 5a is exposed) of the case body 4a.
- the tuner module 3b has a case body 4b.
- the terminal part 5b of the tuner module substrate is exposed outside the case body 4b, and a screwing part 6b is provided at the end of the case body 4b.
- the tuner module 3c has a case body 4c.
- the terminal portion 5c of the tuner module substrate is exposed outside the case body 4c, and a screwing portion 6c is provided at the end of the case body 4c.
- the tuner module 3d has a case body 4d.
- the terminal portion 5d of the tuner module substrate is exposed outside the case body 4d, and a screwing portion 6d is provided at the end of the case body 4d.
- the receiving board 7 has a connector 7a and a SoC 7b.
- the connector 7a and the SoC 7b are electrically connected by a circuit pattern (not shown).
- the configuration of the terminal portions 5a, 5b, 5c and 5d of the board is made common so that each terminal portion can be connected to the connector 7a.
- a plurality of types of tuner modules can be connected to the common receiving board 7.
- the attachment strength to the connector 7a alone may be insufficient compared to the attachment by soldering. Therefore, the tuner module 3a is screwed to the receiving board 7 using the screwing portion 6a to supplement the strength of attachment. The same applies to other tuner modules 3b and the like.
- connection method Many advantages can be obtained by using the above connection method. For example, a soldering process becomes unnecessary. In the soldering process used for attaching the tuner module, special equipment such as applying solder around the hole of the receiving substrate by printing or the like and passing it through a high-temperature reflow furnace is required. However, this connection method is a simple method in which the terminal portion is inserted into the connector and the tuner module is screwed to the receiving board.
- Another advantage is that multiple variations of the receiving board are not required. That is, it is not necessary to use three types of receiving boards as illustrated in FIG. 1, and a plurality of tuner modules can be attached to one receiving board as illustrated in FIG. For this reason, the development cost, time, material cost, etc. of the receiving board can be greatly saved. Furthermore, because development time and manufacturing equipment can be simplified, high skills are not required for personnel involved in development and manufacturing, and facilities, equipment, and tools can be greatly simplified. The cost can be reduced.
- FIG. 3 is a diagram for describing the tuner module (tuner module 10) according to the first embodiment of the present disclosure.
- the tuner module 10 is attached to a television device that is an example of a receiving device.
- the television apparatus has a receiving board 20 and a metal chassis 30 to which the receiving board 20 is attached on the back side.
- FIG. 3 shows a state in which the tuner module 10 is attached to the receiving board 20 and the metal chassis 30 of the television apparatus.
- the tuner module 10 includes a tuner module substrate 11 on which a tuner function unit is formed, and a tuner case 12 (case body) in which the tuner module substrate 11 is housed and functions as a shield case.
- the tuner case 12 is formed in a structure having a substantially box-shaped accommodation space, and has a top surface portion TD and a bottom surface portion DD. Note that the expressions “upper surface portion” and “bottom surface portion” are for convenience of explanation, and the upper surface portion and the bottom surface portion do not need to be positioned above and below, respectively, when the tuner module 10 is used. A portion of the upper surface portion TD of the tuner case 12 is an opening so as to facilitate inspection of an IC or the like mounted on the tuner module substrate 11.
- the tuner case 12 is formed in a substantially box-shaped edge portion and has a substantially frame shape including side portions SD1, SD2, SD3, SD4 having a surface substantially perpendicular to the tuner module substrate 11.
- a hole, a protrusion, a locking piece, or the like may be appropriately provided according to the type of the tuner module.
- the tuner module 10 has an antenna connector 13 that is fixed to a tuner case 12 and that has a center electrode (core wire) connected to the tuner module substrate 11.
- the antenna connector 13 has a generally cylindrical shape, and is connected to the surface on the side SD1 side by caulking, for example.
- An opening is formed in the surface constituting the side portion SD2, and a part of the tuner module substrate 11 is exposed from the side portion SD2 side toward the outside of the tuner case 12 through the opening.
- a terminal portion formed in the vicinity of the end portion where the tuner module substrate 11 is exposed is located outside the tuner case 12.
- This terminal portion is connected to a connector 21 provided on the receiving board 20 as shown in FIG.
- another type of tuner module different from the tuner module 10 also has a terminal portion, and the terminal portion can be connected to the connector 21.
- the tuner module 10 has a first plate-like portion 14 and a second plate-like portion 15.
- the first plate-like portion 14 extends from the side portion SD3 opposite to the side portion SD1 toward the outside of the tuner case 12.
- the first plate-like portion 14 is formed, for example, by bending the surface constituting the side portion SD3 by approximately 90 degrees.
- the first plate-like portion 14 has a hole portion 14a into which a screw that is an example of a screwing member is inserted.
- the second plate-like portion 15 is formed, for example, by bending a part of the surface constituting the side portion SD1 by approximately 90 degrees, and is disposed in the vicinity of the terminal portion of the tuner module substrate 11.
- the second plate-like portion 15 has a hole portion 15a into which a screw is inserted.
- the upper surface portion TD, the bottom surface portion DD, the side portions SD1 to SD4, the first plate portion 14 and the second plate portion 15 constituting the tuner case 12 are formed, for example, by pressing one plate metal. Is done.
- the receiving board 20 and the metal chassis 30 are formed with holes into which screws are inserted corresponding to the holes 14a and 15a.
- a screw is screwed into the hole 15a, the hole corresponding to the hole 15a formed in the receiving board 20 and the hole corresponding to the hole 15a formed in the metal chassis 30, and the tuner case 12 is The receiving board 20 and the metal chassis 30 are screwed.
- this screwing is a screwing for supplementing the strength of connector connection.
- a screw is screwed into a hole corresponding to the hole 14 a and the hole 14 a formed in the metal chassis 30, and the tuner case 12 is directly screwed to the metal chassis 30.
- the screwing is performed manually, for example, but may be automatically performed by a machine.
- the screwing members inserted into the holes 14a and 15a are common (same shape) screwing members. Thereby, it is possible to prevent a trouble from occurring in the installation of the tuner module 10 due to a selection error of the screwing member.
- the tuner case 12 is directly screwed to the metal chassis 30 for mechanical fixing and electrical contact with the ground potential.
- the mechanical fixing is important for accurately positioning the antenna connector 13.
- the metal chassis 30 of the television device is the largest metal component in the device. For this reason, since the stable reference potential having an electrically uniform potential can be obtained, the metal chassis 30 is usually connected to the ground potential.
- the tuner case 12 that is screwed directly into contact with the metal chassis 30 is designed to take the ground potential in the circuit of the tuner module 10, so that the circuit of the tuner module 10 is connected to the ground potential common to the reference potential of the television device. Can be operated.
- the second plate-like portion 15 is attached to the receiving board 20 and the metal chassis 30.
- the first plate-like portion 14 is attached only to the metal chassis 30.
- an embossed portion 41 is provided on the periphery of the hole portion 14a. The embossed portion 41 protrudes from the bottom surface (the surface on the metal chassis 30 side in the attached state) of the first plate-shaped portion 14 toward the top surface, and the shape thereof is usually a circumference as shown in FIG. 4A. Is.
- FIG. 4B is a cross-sectional view showing a state where the tuner case 12 is attached to the metal chassis 30 by the screwing member 50.
- the screwing member 50 in this example includes a screw 51, a spring washer 52, and a washer 53.
- a screw having a size corresponding to a standard called M3 is used as the screw 51 in the present embodiment.
- the screw 51 is screwed together with the spring washer 52 and the washer 53 set to the first plate-like portion 14 side.
- the spring washer 52 makes the contact pressure of the screw 51 and the washer 53 uniform, and the washer 53 absorbs the positional deviation between the hole portion 14 a and the hole portion 31 of the metal chassis 30.
- a burring portion 32 is formed on the metal chassis 30 by performing a burring process for securing a thickness and forming a screw thread.
- the contact portion where the first plate-like portion 14 and the metal chassis 30 come into contact further becomes an outer peripheral portion of the embossed portion 41 provided on the outer periphery of the hole portion 14a.
- the burring part 32 is pulled by the thread of the screw 51 due to the upward force acting when the screw 51 is screwed, and a part of the metal chassis 30 is plastically deformed upward.
- a stress is applied to the screw thread in an oblique direction, resulting in a problem that the diameter of the hole portion 14a is increased or the screw thread is crushed and the screw 51 is removed. .
- the hole 14a is compared with the diameter of the hole 31 in consideration of dimensional tolerances, manufacturing variations, etc. of the metal chassis 30 and the tuner case 12.
- the diameter of is made large. For this reason, since the contact area between the first plate-like portion 14 and the metal chassis 30 tends to be small, and the contact area is further reduced by the circumferential embossed portion 41, the force for suppressing the deformation of the metal chassis 30 is increased. It is difficult to act and the metal chassis 30 is likely to be deformed.
- FIG. 5A and 5B are views for explaining an embossed portion (embossed portion 42) in the tuner module according to the present embodiment.
- FIG. 5A is a perspective view for explaining a configuration example of the embossed portion 42
- FIG. 5B is a top view for explaining a configuration example of the embossed portion 42.
- the embossed portion 42 according to the present embodiment has a configuration in which a plurality of protrusions are provided separately from the peripheral edge portion of the hole portion 14a of the first plate-like portion 14. For example, as shown in FIG.
- the embossed portion 42 has a flower shape in which five protrusions (protrusions 42a to 42e) are provided in a circumferential shape (along the circumference). Yes.
- the five protrusions 42a to 42e are convex from the bottom surface (the surface on the metal chassis 30 side in the attached state) of the first plate-shaped portion 14 toward the top surface.
- FIG. 6A and 6B are cross-sectional views showing a cross section taken along the cutting line XX-XX in FIG. 5B.
- a member including a screw 51, a spring washer 52, and a washer 53 is used as in the above-described screwing member.
- the protrusions 42a to 42e of the embossed portion 42 come into contact with the washer 53, and when the screw 51 is screwed (force in the direction of the arrow AA) and downward stress (in the arrow direction BB). The force in the direction of the direction is balanced.
- the area in which the embossed portion 42 and the washer 53 according to the present embodiment are in contact with each other is smaller than the area in which the embossed portion 41 and the washer 53 that are protrusions over the entire circumference are in contact with each other.
- the area where the first plate-like portion 14 and the metal chassis 30 contact each other increases.
- a flat portion 43 positioned between the protrusion 42 c and the protrusion 42 d contacts the metal chassis 30.
- the area where the first plate-like portion 14 and the metal chassis 30 are in contact with each other is increased by the area of these flat portions.
- the metal chassis 30 and the like are not deformed, so that different types (shapes) of the tuner modules can be easily replaced. For example, even if the tuner module is defective, it can be easily replaced, so that the serviceability of the product can be improved. In addition, since the tuner module can be easily replaced at the design stage, the development man-hours can be shortened.
- the center of the hole portion 31 of the metal chassis 30 and the center of the hole portion 14a of the first plate-like portion 14 may deviate. This deviation is generally caused by the tolerance of the tuner case 12 and the manufacturing tolerance of the tuner module substrate and the tuner case 12. In particular, when assuming a mode in which tuner modules of different sizes are connected to the same receiving board, the size of the hole portion 14a is required to be constant.
- FIG. 7A is a view showing a state in which the screw 51 is screwed in a state where the center of the hole 31 of the metal chassis 30 and the center of the hole 14a of the first plate-like portion 14 are shifted
- FIG. It is a figure which shows the cross section at the time of cut
- the washer 53 has three points.
- the support points projection 42a, projection 42b, and projection 42e
- the washer 53 can be maintained in a substantially horizontal state with the screw 51 attached.
- the substantially horizontal state means a state in which the washer 53 is slightly tilted to the extent that there is no hindrance to the attachment / detachment of the screw 51 from the horizontal state or the horizontal state. If this state can be maintained, the attachment failure of the screw 51 due to the inclination of the washer 53 can be prevented.
- FIG. 8 is a diagram showing an example in which a portion where the screw 51 is screwed is shifted upward toward the drawing
- FIG. 9 is a diagram where a portion where the screw 51 is screwed is shifted downward toward the drawing. It is a figure which shows an example. Even if the location where the screw 51 is screwed is shifted in any direction, the washer 53 can be supported by the projections of three or more points, and the washer 53 can be maintained in a substantially horizontal state.
- the configuration of the embossed portion 42 can be changed as appropriate.
- the embossed portion 42 may be four protrusions (protrusions 44a to 44d) provided in a rectangular shape on the peripheral edge of the hole 14a.
- the embossed portion 42 may be three protrusions (protrusions 45a to 45c) provided in the shape of a truncated cone (for example, a quadrangular pyramid) at the peripheral portion of the hole 14a. That is, the embossed portion 42 can increase the contact area between the first plate-like portion 14 and the metal chassis 30 by a predetermined amount or more as compared with the configuration of the embossed portion 41, and the screw 51 is screwed. If 53 becomes a substantially horizontal state, an appropriate shape can be applied. It is also possible to change the size of the washer 53 according to the shape of the protrusion.
- each protrusion does not need to be in contact with the periphery of the hole 14a.
- the peripheral edge portion of the hole portion 14a is meant to include a portion that is close to the peripheral edge of the hole portion 14a within a range in contact with the peripheral edge of the hole portion 14a and the washer 53.
- the number of antenna connectors in the tuner module 10 can be changed as appropriate.
- the antenna connector of the tuner module 10 may be two antenna connectors 13a and 13b as shown in FIG. 11A, or the antenna connector of the tuner module 10 may be three antenna connectors 13c, 13d and 13e as shown in FIG. 11B. Also good.
- a first plate-like portion 14 may be provided inside the tuner case 12 as shown in FIG. 11B.
- the connection part 61 which connects side part SD2 and side part SD4 in the tuner case 12 may be provided, and the 1st plate-shaped part 14 may extend from the connection part 61, and the structure located in the tuner case 12 may be sufficient.
- the tuner module using the screwing mechanism according to the present embodiment it is possible to prevent the fixed portion of the screw from being destroyed due to deformation of the metal chassis or the like. Accordingly, the screw can be repeatedly attached and detached. Therefore, it is possible to easily replace a plurality of types of tuner modules having a common mounting structure. Thereby, the change of the variation of a television apparatus becomes very easy.
- the soldering process is not required when the tuner module is attached or replaced, an effect of simplification of work costs, equipment, and tools can be obtained.
- the tuner module since the tuner module has a plurality of built-in circuits, the power consumption generally increases and heat is generated. However, since the tuner module according to this embodiment is configured to directly fix the tuner case to the metal chassis, the tuner module can be efficiently cooled. Furthermore, although the harmonics of the transmission signal that is part of the electronic circuit of the tuner module, for example, the local transmitter for channel selection, becomes high frequency noise, the contact point with the metal chassis in the vicinity becomes the ground point. Thus, it is possible to absorb the high frequency noise and reduce unnecessary radiation.
- An F-type connector is known as a coaxial connector that is used to supply the output of an antenna to an internal tuner such as a television receiver or a personal computer and to which one end of a coaxial cable is connected.
- F-type connectors are mainly used in Japan and North America. On the other hand, in Europe, Southeast Asian countries, the Middle East region, and Africa, coaxial connectors called mainly IEC (International Electrotechnical Commission) connectors are used as coaxial connectors.
- An F-type connector or an IEC connector can be applied as the antenna connector of the tuner module 10 in the first embodiment.
- An F-type connector and an IEC connector may be applied as the antenna connector.
- the tuner module 10 may have three antenna connectors, of which two antenna connectors may be F-type connectors and the remaining one antenna connector may be an IEC connector.
- FIG. 12 is a cross-sectional view showing an example of the internal configuration of a general IEC connector.
- a general IEC connector 100 insulates a cylindrical metal shell 101, a cylindrical external electrode 102 incorporated inside the metal shell 101, an internal electrode (core wire) 103, and the external electrode 102 and the internal electrode 103.
- an insulating portion 104 as an insulator.
- the insulating portion 104 is supported in the metal shell 101 by a caulking portion 101 a formed by caulking the metal shell 101.
- a space for accommodating the internal electrode 103 is formed in the insulating portion 104, and the internal electrode 103 is press-fitted and fixed in this space. A part of the internal electrode 103 is led out of the metal shell 101.
- the insulating portion 104 is fixed by the caulking portion 101a of the metal shell 101.
- the insulating portion 104 contracts due to the influence of heat or the like.
- the fixing by the caulking portion 101a becomes loose, and the insulating portion 104 vibrates due to the influence of external vibration.
- the external vibration for example, the vibration of the speaker when a large volume is output from the speaker of the television apparatus can be given.
- the insulating portion 104 hits the metal shell 101 and generates abnormal noise. Therefore, it is desired to suppress the vibration of the insulating portion 104 and reduce the generation of abnormal noise.
- FIG. 13 is a cross-sectional view illustrating an internal configuration example of the IEC connector 110 according to the second embodiment.
- FIG. 14 is an exploded view for explaining a configuration example of the IEC connector 110 according to the second embodiment.
- FIG. 15 is a partially enlarged view showing a part of the internal configuration of the IEC connector 110 in an enlarged manner.
- the basic configuration of the IEC connector 110 is the same as that of the IEC connector 100 described above. That is, the IEC connector 110 includes a cylindrical metal shell 111 as an outer case, a cylindrical outer electrode 112 (first electrode) incorporated inside the metal shell 111, and an inner electrode 113 (second electrode).
- the insulating portion 114 as an insulator that insulates the external electrode 112 and the internal electrode 113 from each other and has a so-called 4-piece structure.
- the insulating portion 114 is supported in the metal shell 111 by a caulking portion 111 a formed by caulking the metal shell 111.
- a caulking portion 114a is formed in the insulating portion 114 corresponding to the caulking portion 111a.
- a space for accommodating the internal electrode 113 is formed in the insulating portion 114, and the internal electrode 113 is press-fitted and fixed in this space. A part of the internal electrode 113 is led out of the metal shell 111.
- the insulating part 114 is made of, for example, resin.
- the external electrode 112 is cylindrical and has a hollow base 112a.
- the base 112a has a slightly curved shape so that the vicinity of the center of the internal space is slightly narrowed.
- a plurality of long holes 112b are formed near the center of the peripheral surface of the base 112a.
- An elastic piece 112c that is slightly bent inward and elastically deformable is formed at an end of the external electrode 112 (an end located on the caulking portion 111a side).
- a plurality (eg, 3 to 5) of elastic pieces 112c are formed at substantially equal intervals along the circumferential end of the external electrode 112.
- the elastic piece 112c When the insulating portion 114 is inserted into the external electrode 112, the elastic piece 112c is elastically deformed slightly outward, and the insulating portion 114 is inserted with one open end of the base portion 112a being expanded.
- the insulating part 114 is fixed by the caulking part 111a of the metal shell 111 as described above. Further, as shown in FIG. 15, the insulating portion 114 is supported (fixed) by the plurality of elastic pieces 112c by the restoring force toward the inside of the elastic pieces 112c.
- the IEC socket according to the second embodiment described above can be applied as the antenna connector of the tuner module described in the first embodiment.
- the present disclosure is not limited to the above-described embodiment, and various modifications based on the technical idea of the present disclosure are possible.
- the present invention can also be configured as a receiving apparatus such as a television apparatus having the tuner module in the first and second embodiments.
- the configurations, methods, processes, shapes, materials, numerical values, and the like given in the above-described embodiments are merely examples, and different configurations, methods, processes, shapes, materials, numerical values, etc. are used as necessary. May be.
- the above-described embodiments and modifications can be combined as appropriate.
- This indication can also take the following composition.
- the case body has a plate-like part in which a hole part into which a screwing member is inserted is formed, A tuner module, wherein a plurality of protrusions are provided apart from each other at a peripheral edge of the hole.
- the antenna connector includes a cylindrical outer case, a cylindrical first electrode incorporated in the outer case, a second electrode disposed in the first electrode, and the second And an insulating part that insulates the first electrode from the second electrode,
- the tuner module according to any one of (1) to (10), wherein the insulator is supported by the outer case and a plurality of elastic pieces provided on one end side of the first electrode.
- (12) (1) A receiving device comprising: the tuner module according to any one of (1) to (11); a metal chassis to which the tuner module is attached by the screw member; and a substrate to which the tuner module substrate is connected.
- a washer that includes the plurality of protrusions so that an area of contact between the metal chassis and the plate-like part is larger than a circumferentially formed protrusion, and is included in the screw member.
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Abstract
Description
チューナ機能部が形成されたチューナモジュール基板が収納されるケース体と、
ケース体に固定され、中心電極の端子部がチューナモジュール基板に接続される少なくとも1つのアンテナコネクタと
を有し、
ケース体は、螺合部材が挿入される孔部が形成された板状部を有し、
孔部の周縁部に複数の突部が離隔して設けられている
チューナモジュールである。
上述のチューナモジュールと、チューナモジュールが螺合部材により取り付けられた金属シャーシと、チューナモジュール基板が接続される基板とを有する受信装置である。
<1.第1の実施形態>
<2.第2の実施形態>
<3.変形例>
以下に説明する実施形態等は本開示の好適な具体例であり、本開示の内容がこれらの実施形態等に限定されるものではない。
また、以下の説明では、図示が煩雑となることを防止するために、一部の構成のみに参照符号を付す場合や、一部の構成を簡略化して示す場合もある。また、断面図において断面を示すハッチングを適宜、省略する場合もある。
「本開示に関連する技術について」
始めに、本開示の理解を容易とするために本開示に関連する技術について説明する。なお、以下の説明では、テレビジョン装置の基板(以下、受信基板と適宜、称する)に接続されるチューナモジュールを例にして説明する。
図3は、本開示の第1の実施形態に係るチューナモジュール(チューナモジュール10)を説明するための図である。チューナモジュール10は、受信装置の一例であるテレビジョン装置に取り付けられる。テレビジョン装置は、背面側に、受信基板20及び受信基板20が取り付けられる金属シャーシ30を有している。図3では、チューナモジュール10がテレビジョン装置の受信基板20及び金属シャーシ30に取り付けられた状態が示されている。
ここで、チューナケース12が金属シャーシ30に適切に取り付けられていない取り付け不良の影響について説明する。金属シャーシ30に対するチューナケース12のネジ止めによる接続が不安定な場合には、チューナモジュール10の回路におけるグランド電位と、テレビジョン装置の回路におけるグランド電位とが異なるおそれがある。グランド電位が異なる場合、その電位差がノイズとしてテレビジョン装置やチューナモジュール10の回路に悪影響を及ぼしたり、不要な輻射ノイズを発生させる原因となる。
図5A及び図5Bは、本実施形態に係るチューナモジュールにおけるエンボス部(エンボス部42)を説明するための図である。図5Aは、エンボス部42の構成例を説明するための斜視図であり、図5Bは、エンボス部42の構成例を説明するための上面図である。本実施形態に係るエンボス部42は、第1板状部14の孔部14aの周縁部に複数の突部が離隔して設けられた構成を有している。例えば、図5Aに示すように、エンボス部42は、5つの突部(突部42a~突部42e)が円周状に(円周上に沿って)設けられた花形の形状を成している。5つの突部42a~突部42eは、第1板状部14の底面(取り付け状態において金属シャーシ30側となる面)から上面に向かって凸となっている。
以上説明した第1の実施形態は、種々の変更が可能である。以下、第1の実施形態の変形例について説明する。
本開示の第1の実施形態では、例えば、以下の効果が得られる。本実施形態によるネジ止め機構を用いたチューナモジュールを用いれば、金属シャーシの変形等に伴ってネジの固定部分が破壊されてしまうことを防止することができる。したがって、ネジの着脱を繰り返し行えるようになる。したがって、取り付け構造を共通にした複数タイプのチューナモジュールを容易に取替えることが可能となる。これにより、テレビジョン装置のバリエーションの変更が極めて容易になる。また、チューナモジュールの取り付けや交換の際に半田付けの工程が不要となるため、作業に係る費用、設備、工具の簡便化という効果が得られる。
次に、第2の実施形態について説明する。なお、特に断らない限り、第1の実施形態で説明した事項は第2の実施形態に適用することができる。
図12は、一般的なIECコネクタの内部構成例を示す断面図である。一般的なIECコネクタ100は、筒状の金属シェル101と、金属シェル101の内側に組み込まれる筒状の外部電極102と、内部電極(芯線)103と、外部電極102と内部電極103とを絶縁する絶縁体としての絶縁部104とを有している。金属シェル101をかしめることで形成されるかしめ部101aにより、絶縁部104が金属シェル101内に支持される。絶縁部104内には、内部電極103を収容する空間が形成されており、この空間に内部電極103が圧入されて固定される。内部電極103の一部が金属シェル101の外部に導出されている。
図13~図15を参照して、第2の実施形態に係るIECコネクタ(IECコネクタ110)について説明する。図13は、第2の実施形態に係るIECコネクタ110の内部構成例を示す断面図である。図14は、第2の実施形態に係るIECコネクタ110の構成例を説明するための分解図である。図15は、IECコネクタ110の内部構成の一部を拡大して示した部分拡大図である。
以上、本開示の実施形態について具体的に説明したが、本開示は、上述の実施形態に限定されるものではなく、本開示の技術的思想に基づく各種の変形が可能である。本発明は、第1及び第2の実施形態におけるチューナモジュールを有するテレビジョン装置等の受信装置として構成することも可能である。また、上述の実施の形態において挙げた構成、方法、工程、形状、材料及び数値などはあくまでも例に過ぎず、必要に応じてこれと異なる構成、方法、工程、形状、材料及び数値などを用いてもよい。上述した実施形態及び変形例は、適宜組み合わせることができる。
(1)
チューナ機能部が形成されたチューナモジュール基板が収納されるケース体と、
前記ケース体に固定され、中心電極の端子部が前記チューナモジュール基板に接続される少なくとも1つのアンテナコネクタと
を有し、
前記ケース体は、螺合部材が挿入される孔部が形成された板状部を有し、
前記孔部の周縁部に複数の突部が離隔して設けられている
チューナモジュール。
(2)
前記螺合部材により、前記ケース体が受信装置の金属シャーシに取り付けられるように構成される
(1)に記載のチューナモジュール。
(3)
前記複数の突部が円周状または矩形状に設けられている
(1)または(2)に記載のチューナモジュール。
(4)
5つの前記突部が円周状に設けられている
(3)に記載のチューナモジュール。
(5)
前記ケース体は、上面部、底面部及び第1~第4の側部を有する
(1)~(4)のいずれかに記載のチューナモジュール。
(6)
前記第1の側部に前記アンテナコネクタが接続され、
前記第1の側部とは反対側の第3の側部側から、前記ケース体の外部に向かう方向に前記板状部が延在する
(5)に記載のチューナモジュール。
(7)
前記ケース体の内側に前記板状部が設けられている
(5)の記載のチューナモジュール。
(8)
前記チューナモジュール基板の端子部が前記第2の側部側から前記ケース体の外側に向かって露出する
(5)~(7)のいずれかに記載のチューナモジュール。
(9)
前記ケース体は、前記螺合部材と共通の螺合部材が取り付け可能とされた孔部を有する他の板状部を有する
(1)~(8)のいずれかに記載のチューナモジュール。
(10)
前記ケース体に接続される前記アンテナコネクタの数が1~3のいずれかである
(1)~(9)のいずれかに記載のチューナモジュール。
(11)
前記アンテナコネクタは、筒状の外部ケースと、前記外部ケースの内部に組み込まれている筒状の第1の電極と、前記第1の電極内に配される第2の電極と、前記第2の電極を支持するとともに、前記第1の電極と前記第2の電極とを絶縁する絶縁部とを有し、
前記絶縁体は、前記外部ケースと、前記第1の電極の一端側に設けられた複数の弾性片とにより支持される
(1)~(10)のいずれかに記載のチューナモジュール。
(12)
(1)~(11)のいずれかに記載のチューナモジュールと、前記チューナモジュールが前記螺合部材により取り付けられた金属シャーシと、前記チューナモジュール基板が接続される基板とを有する受信装置。
(13)
前記金属シャーシと前記板状部とが接触する面積が、円周状に形成された突部に比べて大きくなるように前記複数の突部が形成され、且つ、前記螺合部材に含まれるワッシャー部が前記複数の突部により略水平に支持される
(12)に記載の受信装置。
Claims (13)
- チューナ機能部が形成されたチューナモジュール基板が収納されるケース体と、
前記ケース体に固定され、中心電極の端子部が前記チューナモジュール基板に接続される少なくとも1つのアンテナコネクタと
を有し、
前記ケース体は、螺合部材が挿入される孔部が形成された板状部を有し、
前記孔部の周縁部に複数の突部が離隔して設けられている
チューナモジュール。 - 前記螺合部材により、前記ケース体が受信装置の金属シャーシに取り付けられるように構成される
請求項1に記載のチューナモジュール。 - 前記複数の突部が円周状または矩形状に設けられている
請求項1に記載のチューナモジュール。 - 5つの前記突部が円周状に設けられている
請求項3に記載のチューナモジュール。 - 前記ケース体は、上面部、底面部及び第1~第4の側部を有する
請求項1に記載のチューナモジュール。 - 前記第1の側部に前記アンテナコネクタが接続され、
前記第1の側部とは反対側の第3の側部側から、前記ケース体の外部に向かう方向に前記板状部が延在する
請求項5に記載のチューナモジュール。 - 前記ケース体の内側に前記板状部が設けられている
請求項5の記載のチューナモジュール。 - 前記チューナモジュール基板の端子部が前記第2の側部側から前記ケース体の外側に向かって露出する
請求項5に記載のチューナモジュール。 - 前記ケース体は、前記螺合部材と共通の螺合部材が取り付け可能とされた孔部を有する他の板状部を有する
請求項1に記載のチューナモジュール。 - 前記ケース体に接続される前記アンテナコネクタの数が1~3のいずれかである
請求項1に記載のチューナモジュール。 - 前記アンテナコネクタは、筒状の外部ケースと、前記外部ケースの内部に組み込まれている筒状の第1の電極と、前記第1の電極内に配される第2の電極と、前記第2の電極を支持するとともに、前記第1の電極と前記第2の電極とを絶縁する絶縁部とを有し、
前記絶縁体は、前記外部ケースと、前記第1の電極の一端側に設けられた複数の弾性片とにより支持される
請求項1に記載のチューナモジュール。 - 請求項1に記載のチューナモジュールと、前記チューナモジュールが前記螺合部材により取り付けられた金属シャーシと、前記チューナモジュール基板が接続される基板とを有する受信装置。
- 前記金属シャーシと前記板状部とが接触する面積が、円周状に形成された突部に比べて大きくなるように前記複数の突部が形成され、且つ、前記螺合部材に含まれるワッシャー部が前記複数の突部により略水平に支持される
請求項12に記載の受信装置。
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