JP6998535B2 - TV outlet - Google Patents

Description

The present invention relates to a television outlet that is provided on an indoor wall surface or the like and supplies an antenna reception signal to a television receiver.

An antenna reception signal is supplied from the TV antenna to the TV outlet provided on the wall surface of the room via the input side coaxial cable, and the antenna reception signal is supplied from the TV outlet to the TV receiver via the output side coaxial cable. To.

In recent years, with the ultra-high definition of television broadcasting, the IF frequency band of the received signal supplied to the television outlet has been widened to 3.224 GHz. However, since this band overlaps with the band of other communication services such as wireless LAN, noise due to interference is likely to occur.

Patent Document 1 discloses a television outlet having a configuration in which an input-side coaxial cable to which a received signal is supplied from a television antenna is connected without using an F-type connector. In this TV outlet, a housing for accommodating a connection fitting for electrically connecting an input side coaxial cable and an output side coaxial cable is formed in a box shape by bending a metal plate.

Japanese Unexamined Patent Publication No. 2001-135433

In the TV outlet disclosed in Patent Document 1, since the core wire of the input side coaxial cable and the terminal fitting electrically connected to the core wire are not electromagnetically shielded, they may interfere with the electromagnetic waves of other communication services. It is easily affected by the generated noise.

If the input side coaxial cable is connected to the TV outlet using an F-type connector, the shielding property will be improved, but since the housing and the F-type connector are integrally formed by die-casting, it requires labor for processing. There's a problem. In addition, the work of screwing the F-type connector to the TV outlet at the time of construction becomes complicated.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a television outlet which has good workability and can secure a shielding property against external noise.

One aspect of the television outlet that solves the above problems includes a metal housing, a metal lid member, and an iron terminal board. The metal housing has a mounting shaft to which the F-type connector of the output side coaxial cable is connected. The iron terminal board is arranged between the mounting shaft and the lid member.
One aspect of the television outlet that solves the above problems includes a metal housing, a metal lid member, terminal fittings, and an iron terminal board. The metal housing has a mounting shaft to which the F-type connector of the output side coaxial cable is connected. The terminal fitting has a spring piece on the output side to which the core wire of the F-type connector is connected. The iron terminal plate is arranged between the spring piece on the output side and the lid member .
One aspect of the television outlet that solves the above problems includes a metal housing, a metal lid member, terminal fittings, a terminal case, and a terminal board. The metal housing has a mounting shaft to which the F-type connector of the output side coaxial cable is connected. The terminal fitting has a spring piece on the input side that allows the core wire of the coaxial cable on the input side to be sandwiched. The terminal case accommodates the spring piece on the input side. The terminal board is arranged between the mounting shaft and the lid member. The terminal board is arranged between a part of the terminal case and the lid member.
One aspect of the television outlet that solves the above problems includes a metal housing, a metal lid member, terminal fittings, a terminal case, and a terminal board. The metal housing has a mounting shaft to which the F-type connector of the output side coaxial cable is connected. The terminal fitting has a spring piece on the output side to which the core wire of the F-type connector is connected and a spring piece on the input side to which the core wire of the coaxial cable on the input side is connected. The terminal case accommodates the spring piece on the input side. The terminal board is arranged between the spring piece on the output side and the lid member. The terminal board is arranged between a part of the terminal case and the lid member.

According to the TV outlet of the present invention, the workability and the shielding property against external noise are improved.

It is a perspective view which shows the television outlet of one Embodiment. It is a perspective view which shows the television outlet of one Embodiment. It is an exploded perspective view which shows the television outlet of one Embodiment. It is a perspective view which shows the housing. It is a perspective view which shows the lid member. It is a side view which shows the state which opened the lid member. It is a rear view which shows the television outlet of one Embodiment.

Hereinafter, an embodiment of the television outlet will be described with reference to the drawings. The TV outlets shown in FIGS. 1 to 3 include a housing 1 that houses a terminal fitting for electrically connecting an input-side coaxial cable and an output-side coaxial cable, and a lid member 2 that covers an opening of the housing 1. Be done.

As shown in FIG. 4, the housing 1 is integrally formed in a long square box shape by zinc die casting, and is opened toward one side. When the TV outlet is mounted on the wall surface, the housing 1 is mounted so as to open toward the outdoor side. The upper side 3 of the housing 1 and the upper portion of the side side 4 connected to both sides of the upper side 3 are extended toward the outdoor side.

A cylindrical mounting shaft 6 is projected from the other side surface of the housing 1, that is, the side surface facing the indoor side, and a screw 7 is engraved on the outer peripheral surface of the mounting shaft 6 to screw an F-type plug. It is possible to do so. The through hole 8 formed in the central portion of the mounting shaft 6 communicates with the inside of the housing 1.

Mounting pieces 9 projecting laterally are formed on the side sides 4 of the housing 1, and are fixed to the wall surface via the mounting pieces 9.
A separator 10 formed of a synthetic resin in a substantially plate shape is attached to the housing 1. The separator 10 is formed with a cylindrical portion 11 projecting indoors toward the inside of the mounting shaft 6, and as shown in FIG. 2, the tip of the tubular portion 11 is exposed in the through hole 8 of the mounting shaft 6. ing. An insertion hole 12 through which the core wire of the output side coaxial cable Co can be inserted is formed in the central portion of the tubular portion 11.

A plurality of locking convex portions 13 are projected toward the outdoor side on one side of the lower edge of the separator 10, and the terminal fitting 14 is supported by the locking convex portions 13. It is possible to insert the core wire of the input side coaxial cable Ci inserted from below into the terminal fitting 14, and the core wire of the output side coaxial cable Co inserted from the indoor side. The second spring piece 16 is formed.

The tip of the second spring piece 16 is inserted into the tubular portion 11 of the separator 10, and the core wire inserted into the insertion hole 12 can be sandwiched.
The base portion of the terminal case 17 molded of synthetic resin is fitted to the locking convex portion 13 of the separator 10. A rectangular parallelepiped terminal accommodating portion 18 is formed on one side of the terminal case 17, and the first spring piece 15 of the terminal fitting 14 is accommodated in the terminal accommodating portion 18. Further, an insertion hole 19 is formed on the upper surface of the terminal accommodating portion 18 so that the core wire of the input side coaxial cable Co can be inserted. Since the terminal fitting 14 connecting the input side coaxial cable Ci is covered with the terminal case 17, it is possible to prevent a short circuit between the core wire of the input side coaxial cable Ci and the braided wire.

A terminal plate 20 is attached to the housing 1 so as to cover the separator 10 housed in the housing 1 and the base portion of the terminal case 17. The terminal plate 20 is formed of an iron plate, and is fixed to the corners of the opening of the housing 1 by the through holes 21 formed at the four corners. The terminal case 17 is formed with a groove portion 22 through which the terminal accommodating portion 18 can be inserted so that the terminal accommodating portion 18 protrudes from the terminal plate 20 to the outside of the room.

A ridge 23 extending in a direction orthogonal to the insertion direction of the core wire into the terminal accommodating portion 18 is formed in the central portion of the terminal plate 20.
The lid member 2 is integrally formed by zinc die-casting so as to cover the opening of the housing 1. The peripheral edge of the lid member 2 is formed so as to be in close contact with the peripheral edge of the opening of the housing 1. Support shafts 24 projecting laterally are formed on both sides of the upper edge portion of the lid member 2.

A support groove 25 capable of holding the support shaft 24 is formed on the side side 4 of the housing 1 in the vicinity of both ends of the upper side 3. The lid member 2 is rotatably supported by the housing 1 with the support shaft 24 as a rotation fulcrum in a state where the support shaft 24 is held in the support groove 25.

As shown in FIG. 1, the support groove 25 has a groove portion that rotatably supports the support shaft 24, and an opening that communicates with the groove portion and has a width smaller than the width of the groove portion and the diameter of the support shaft 24. Since the width of the opening is smaller than the diameter of the groove and the support shaft 24, it is possible to prevent the support groove 25 of the support shaft 24 from falling off from the groove. Further, since the space between the groove portion and the opening portion of the support groove 25 is filled by inserting the support shaft 24, the electromagnetic shielding property of the television outlet can be improved. The shape of the support groove 25 is not limited to the above shape.

At the lower edge of the lid member 2, a holding recess 26 is opened at a position communicating with the insertion hole 19 of the terminal accommodating portion 18. The holding recess 26 is formed in a semi-circular cross section by forming a curved portion 26a in the lid member 2.

As shown in FIGS. 2 and 5, a retaining protrusion 34 is formed on the back surface of the curved portion 26a facing the holding recess 26 in the vicinity of the opening of the holding recess 26. By providing the retaining protrusion 34 in the vicinity of the opening of the holding recess 26, it is possible to prevent the holding recess 26 from coming off from the opening when the input side coaxial cable Ci is pulled, for example.

Then, when the core wire of the input side coaxial cable Ci is inserted into the insertion hole 19 of the terminal accommodating portion 18 with the lid member 2 open, and the lid member 2 is rotated and closed in this state, the input side coaxial cable Ci is released. The lid member 2 is sandwiched and held between the terminal plate 20 and the opening edge of the housing 1 in the holding recess 26.

A through hole 28 through which a screw 27 can be inserted is formed in the central portion of the lid member 2. Further, the terminal board 20 is provided with a screw hole 29 at a position communicating with the through hole 28. Then, when the screw 27 is screwed into the screw hole 29 from the through hole 28 with the lid member 2 closed, the lid member 2 is fixed to the terminal plate 20 and the round shaft-shaped input side coaxial cable Ci is always formed. It is crushed in the holding recess 26 so that the holding recess 26 is almost sealed.

As shown in FIG. 5, a plurality of protrusions 30 are formed at equal intervals on the upper edge of the lid member 2. Then, as shown in FIG. 7, when the lid member 2 is closed, the gap between the upper edge of the lid member 2 and the upper side 3 of the housing 1 is closed by the protrusions 30 at equal intervals. ..

In this way, when the gap is closed by the protrusions 30, radio waves having a frequency at which the distance between the protrusions 30 is 1/10 to 1/20 of the wavelength or lower, that is, the input side coaxial cable Ci is transmitted. A shielding effect against electromagnetic waves that can generate noise with respect to the television reception signal can be obtained. Further, by providing the protrusion 30, the upper edge of the lid member 2 can be brought into contact with the upper side of the housing 1, and the lid member 2 can be stably held.

A terminal cover 31 formed in a square box shape made of synthetic resin is attached to the side surface of the housing 1 on the indoor side. A through hole 32 is provided in the central portion of the terminal cover 31 for inserting the mounting shaft 6 and exposing it to the indoor side. A recess 33 for connecting the F-type plug F of the output side coaxial cable Co is formed.

A locking piece 35 having a wedge-shaped tip is formed on both left and right sides of the terminal cover 31, and the locking piece 35 is engaged with a mounting groove 36 formed in the mounting piece 9 of the housing 1. By doing so, the terminal cover 31 is attached to the housing 1.

Then, the TV outlet configured in this way is fixed to the wall surface via the bracket, and only the front surface of the terminal cover 31 and the mounting shaft 6 are exposed to the wall surface by the outlet cover. Next, the operation of the TV outlet configured as described above will be described.

When installing the above-mentioned TV outlet on the wall surface, as shown in FIG. 6, the core wire of the input side coaxial cable Ci to which the received signal is supplied from the antenna is first connected to the terminal accommodating portion 18 with the lid member 2 opened. It is inserted into the insertion hole 19 and sandwiched between the first spring piece 15 of the terminal fitting 14.

Then, when the lid member 2 is closed and the screw 27 is tightened, the lid member 2 is fixed to the housing 1, and the input side coaxial cable Ci is radially pressed in the holding recess 26 to be deformed. As a result, the holding recess 26 is sealed with the input side coaxial cable Ci.

In this state, the TV outlet is installed on the wall surface, the F-type connector F of the input side coaxial cable Co is connected to the mounting shaft 6 exposed indoors, and the core wire is inserted into the insertion hole 12 to insert the core wire into the insertion hole 12. It is sandwiched between the second spring pieces 16. Then, the core wire of the input side coaxial cable Ci and the core wire of the output side coaxial cable Co are connected via the terminal fitting 14, and the antenna reception signal is supplied from the antenna to the television receiver.

With a TV outlet as described above, the following effects can be obtained.
(1) Since the opening of the housing 1 is covered with the lid member 2 integrally molded by zinc die-casting, the input side coaxial cable Ci connected in the housing 1 is connected to the housing 1 and the lid member 2. Can be covered. Therefore, it is possible to improve the electromagnetic shielding property and suppress the mixing of noise into the television reception output.

(2) The input-side coaxial cable Ci can be pressed between the curved portion 26a of the lid member 2 and the opening edge of the housing 1 and the terminal plate 20 to substantially seal the holding recess 26. Therefore, it is possible to improve the electromagnetic shielding property for the input side coaxial cable Ci connected in the housing 1 without using the F-type connector F.

(3) If the core wire of the input side coaxial cable Ci is inserted into the insertion hole 19 of the terminal case 17, the lid member 2 is closed and fixed to the housing 1 with the screw 27, the input side coaxial cable Ci can be connected to the TV outlet. Since the work is completed, the number of steps required for connecting the input side coaxial cable Ci can be reduced. That is, the workability is good, and the shielding property against external noise can be ensured.

(4) Since the housing 1 is integrally molded by zinc die-casting, a box-shaped housing can be formed without providing a through hole. Therefore, the shielding property of the housing 1 can be improved.
(5) Since the lid member 2 is supported by the opening of the housing 1 so as to be openable and closable, the core wire of the input side coaxial cable Ci can be easily inserted into the insertion hole 19 of the terminal case 17 by opening the lid member 2. ..

(6) When the lid member 2 is closed after the core wire of the input side coaxial cable Ci is inserted into the insertion hole 19, the gap between the upper edge of the lid member 2 and the opening edge of the housing 1 is formed by a plurality of protrusions 30. It is blocked at regular intervals. Therefore, it is possible to suppress the deterioration of the electromagnetic shielding property due to the gap between the upper edge of the lid member 2 and the opening edge of the housing 1.

(7) By engaging the retaining protrusion 34 provided on the curved portion 26a of the lid member 2 with the input-side coaxial cable Ci, it is possible to prevent the input-side coaxial cable Ci from coming off from the holding recess 26.

(8) Since the mounting shaft 6 to which the F-type connector F of the output side coaxial cable Co can be connected is integrally formed in the housing 1, the shielding property can be improved.
The above embodiment may be modified as follows.

The housing 1 and the lid member 2 may be integrally formed of a metal other than zinc die-cast, for example, aluminum die-cast, that is, a metal having a property of shielding electromagnetic waves and suitable for casting.
-For the protrusions that close the gap between the lid member and the housing at equal intervals, a member separate from the lid member may be attached to the lid member. The protrusions described above do not have to be evenly spaced.

(Appendix 1)
A storage unit for storing terminal fittings to which the core wire of the F-type connector is connected, and a housing having an opening for opening the storage unit.
A metal lid member that covers the opening of the housing is provided.
The peripheral edge of the lid member is a television outlet that contacts the peripheral edge of the opening of the housing.

(Appendix 2)
The housing has a protrusion that protrudes from the peripheral edge of the opening of the housing to the side opposite to the storage portion of the housing.
The television outlet according to Appendix 1, wherein the lid member is arranged next to the protrusion.

(Appendix 3)
The protrusion has a side surface that extends in the protrusion direction of the protrusion.
The television outlet according to Appendix 2, wherein the side edge of the lid member faces the side surface of the protrusion when the peripheral edge of the lid member is in contact with the peripheral edge of the opening of the housing.

(Appendix 4)
The television outlet according to claim 2 or 3, wherein the protrusion supports the lid member so as to be rotatable with respect to the housing.

(Appendix 5)
The lid member has a support shaft protruding from the side edge of the lid member and has a support shaft.
The housing has a support groove that supports the support shaft so that the lid member can rotate with respect to the housing.
The television outlet according to any one of Supplementary note 1 to 4, wherein the support groove has a groove portion that supports the support shaft and an opening that communicates with the groove portion.

(Appendix 6)
The television outlet according to Appendix 5, wherein the width of the opening of the support groove is smaller than the width of the groove.

(Appendix 7)
The television outlet according to Appendix 5 or 6, wherein the width of the opening of the support groove is smaller than the diameter of the support shaft.

(Appendix 8)
The television outlet according to any one of Supplementary note 1 to 7, wherein the lid member has a protrusion that closes a gap between a side edge of the lid member and an opening edge of the housing.

1: Housing 2: Cover member 3: Top side 4: Side side 14: Terminal metal fittings 24: Support shaft 25: Support groove 30: Protrusion Ci: Input side shaft cable Co: Output side shaft cable F: F type plug

Claims (10)

A metal housing with a mounting shaft to which the F-type connector of the output side coaxial cable is connected,
With a metal lid member,
An iron terminal board disposed between the mounting shaft and the lid member.
TV outlet. A metal housing with a mounting shaft to which the F-type connector of the output side coaxial cable is connected,
With a metal lid member,
A terminal fitting having a spring piece on the output side to which the core material of the F-type connector is connected, and
An iron terminal plate arranged between the output-side spring piece and the lid member is provided.
TV outlet. A metal housing with a mounting shaft to which the F-type connector of the output side coaxial cable is connected,
With a metal lid member,
A terminal fitting with a spring piece on the input side that allows the core wire of the coaxial cable on the input side to be sandwiched,
A terminal case in which the spring piece on the input side is housed, and
A terminal board arranged between the mounting shaft and the lid member is provided.
The terminal board is arranged between a part of the terminal case and the lid member.
TV outlet. A metal housing with a mounting shaft to which the F-type connector of the output side coaxial cable is connected,
With a metal lid member
A terminal fitting having a spring piece on the output side to which the core wire of the F-type connector is connected and a spring piece on the input side to which the core wire of the input side coaxial cable is connected.
A terminal case in which the spring piece on the input side is housed, and
A terminal plate arranged between the output-side spring piece and the lid member is provided.
The terminal board is arranged between a part of the terminal case and the lid member.
TV outlet. A terminal fitting having a spring piece on the output side to which the core wire of the F-type connector is connected is further provided.
The TV outlet according to claim 1. The terminal fitting has a spring piece on the input side to which the core wire of the coaxial cable on the input side is connected.
The TV outlet according to claim 2 or 5. The lid member can be opened and closed with respect to the housing.
The core wire of the input-side coaxial cable is connected to the input-side spring piece with the lid member open, and the lid member is closed to fix the input-side coaxial cable.
The TV outlet according to any one of claims 3, 4 and 6. The terminal board has a screw hole and has a screw hole.
The terminal board is attached to the housing by screwing a screw into the screw hole.
The TV outlet according to any one of claims 1 to 7. The lid member is rotatably supported by the housing.
The TV outlet according to any one of claims 1 to 8. The housing is integrally molded by zinc die casting.
The TV outlet according to any one of claims 1 to 9.

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