JP2006139962A - High frequency apparatus, device for preventing connector from slipping off, and wiring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple, reliable, and inexpensive device for preventing a connector from slipping off. <P>SOLUTION: This high frequency apparatus is composed of a case equipped with a connector seat, a decorative case housing the case and having an opening part from which the connector seat projects, and a lid body to close the opening part with the connector seat projecting, and the decorative case is detachably combined with the lid body. On the wall surface located perpendicularly to the axial line of the connector seat in the lid body, a recessed part composed of a cut part cut from an end part on the one side of the wall surface while having a slightly larger size than the outer diameter of the connector seat, and a curved part provided continuously with the cut part and formed concentrically with the center axis of the connector seat with the opening part closed by the lid body so as to surround the half of the periphery diameter of the connector seat is formed, and a lock part is formed on the periphery of a connecting plug housing part equipped in a connector plug. The lid body is mounted to the decorative case when the connecting plug is connected with the connector seat, and the curved part of the lid body is engaged with the lock part of the connector plug. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

The present invention relates to the prevention of disconnection for preventing one connector from being disconnected from the other connector in the connection of a coaxial connector mainly used for a TV joint reception device, and more particularly to the structure of the connector prevention tool. .

Conventionally, a connector for a television joint receiving device has a cable coupling portion connected to a braided conductor of a coaxial cable at the connector plug, and is movable in the axial direction and rotated in the circumferential direction at the base end portion of the cable coupling portion. A ring-shaped engaging portion pivotally attached to the cable connecting portion and the engaging portion; and an elastic member that performs an elastic buffering action between the cable connecting portion and the engaging portion. Provided with a locking piece,
The connector seat is formed with a groove formed by a series of an introduction portion, a guide portion, and a locking portion provided on a screw surface formed on the peripheral surface of the connector seat, and the engagement formed on the connector plug is formed in the groove. Since the stopper is engaged and connected, the coaxial connector plug can be connected to the connector seat only by rotating the ring-shaped engaging portion and can be firmly attached. In addition, the detachment operation can be smoothly performed by an elastic buffering action by an elastic member provided between the cable connecting portion and the engaging portion.
(For example, see Patent Document 1)

Japanese Patent No. 3034534

However, according to the conventional coaxial connector plug, a locking piece is provided on the inner side of the end face of the ring-shaped engaging portion, so that this coaxial connector plug has a locking groove formed on the connector seat to which it is attached. This connector seat can only be attached to the same connector seat, and even if the connector seat is versatile enough to accept other types of coaxial connector plugs, it can be fixed to the coaxial connector seat. When a certain connector plug is attached, there arises a problem that the attachment strength is lowered.
Further, since the coaxial connector shown in this embodiment has a locking piece, it has to be used one-on-one with the connector seat, which has a problem in versatility.
In addition, the elastic members provided to improve the operability of the connection and to improve the mounting strength after the connection are called a disc spring held by a retaining ring or a chrysanthemum spring that abuts against the end face of the connector seat. Since it is composed of a plurality of components, there is a problem that the structure is complicated and the cost of the product is increased.
Therefore, in the present application, it was made to solve such problems,
An object of the present invention is to provide a connector disconnection prevention tool that can easily and inexpensively prevent connector disconnection.
Another object of the present invention is to provide a coaxial connector disconnection prevention device that can make a connection with excellent adhesion even though it is simple and inexpensive.
Another object is to provide a stopper for providing a coaxial connector that is difficult to be pulled out even when a coaxial cable is pulled.
Another object of the present invention is to provide a coaxial connector disconnection prevention device that can be easily installed in the TV joint reception work.
Another object is to provide a high-frequency device including a connector disconnection prevention tool that can easily and inexpensively prevent connector disconnection.
Another object of the present invention is to provide a high-frequency device equipped with a coaxial connector disconnection prevention device that can make a connection with excellent adhesion even though it is simple and inexpensive.
Another object is to provide a high-frequency device equipped with a stopper for providing a coaxial connector that is difficult to be pulled out even when a coaxial cable is pulled.
Another object of the present invention is to provide a high-frequency device equipped with a coaxial connector disconnection prevention device that can be easily installed in the TV joint reception work.
Another object of the present invention is to provide a wiring system equipped with a coaxial connector disconnection prevention device that can be easily installed in the TV joint reception work.

In order to solve the above-mentioned problem, the invention of claim 1 is provided with a case to which at least a connector seat is attached, a decorative case having an opening formed to accommodate the case and project the connector seat, In a high-frequency device comprising a lid formed so that the opening can be closed with the connector seat protruding,
The decorative case and the lid are provided with engaging means so as to be detachably fixed,
A wall surface disposed at a position orthogonal to the axis of the connector seat in the lid body has a notch portion that is slightly larger than the outer diameter of the connector seat and is notched from one end of the wall surface, and the notch A curved portion formed concentrically with respect to the central axis of the connector seat in a state where the opening is closed by the lid body, the size of the connector seat being continuous and at least half the circumference of the connector seat It is comprised so that the recessed part which consists of may be formed.

The invention according to claim 2 is the high-frequency device according to claim 1, wherein a locking portion is formed on the outer periphery of the cylindrical plug housing portion provided in the connector plug inserted into the connector seat.
When the lid is attached to the decorative case with the connector plug and the connector seat connected, the curved portion of the lid and the locking portion of the connector plug are in the rotational direction of the connector plug. On the other hand, the connector plug is configured to be fitted so as to prevent the connector plug from coming off from the connector seat in the direction in which the connector plug is removed from the connector seat.

According to a third aspect of the present invention, there is provided a case in which at least a connector seat is attached, a decorative case that houses the case and has an opening formed to project the connector seat, and the connector seat projects. In a high-frequency device connector prevention tool comprising a lid body that can close the opening,
A locking portion is formed on the outer periphery of the cylindrical plug housing portion provided in the connector plug inserted into the connector seat, and the lid body includes the connector plug and the connector seat. When attached to the decorative case in a connected state, the curved portion formed on the lid and the engaging portion formed on the connector plug are fitted to each other, thereby rotating the connector plug in the rotation direction. On the other hand, the connector plug is configured to be rotatable so as to prevent the connector plug from coming off from the connector seat.

According to a fourth aspect of the present invention, a wiring system is configured by including the high-frequency device according to the first or second aspect or the connector disconnection preventing device according to the third aspect.

According to a fifth aspect of the present invention, in the high-frequency device according to the first or second aspect, the connector disconnection prevention device according to the third aspect, or the wiring system according to the fourth aspect, the connector plug and the connector seat are coaxial F. It is characterized in that it is for a TV joint receiving device composed of a mold.

According to the first aspect of the present invention, in order to solve the above-mentioned problem, the first aspect of the present invention is formed so that at least the connector seat is mounted, the case is accommodated and the connector seat protrudes. A high-frequency device comprising a decorative case having an open portion and a lid formed so as to be able to close the open portion with the connector seat projecting,
The decorative case and the lid are provided with engaging means so as to be detachably fixed,
A wall surface disposed at a position orthogonal to the axis of the connector seat in the lid body has a notch portion that is slightly larger than the outer diameter of the connector seat and is notched from one end of the wall surface, and the notch A curved portion formed concentrically with respect to the central axis of the connector seat in a state where the opening is closed by the lid body, the size of the connector seat being continuous and at least half the circumference of the connector seat Since it was configured to form a recess consisting of
For example, by attaching a connector plug having a locking portion to the outer peripheral surface of a cylindrical plug receiving portion that is inserted into the connector seat, the lid is opened in a state where the connector seat and the connector plug are connected. By attaching the curved portion formed on the lid and the engaging portion when fitted to the connector body, it is difficult to remove the connector plug from the connector seat even in the plug connection method. Equipment can be provided.

The invention according to claim 2 is the high-frequency device according to claim 1, wherein a locking portion is formed on the outer periphery of the cylindrical plug housing portion provided in the connector plug inserted into the connector seat.
When the lid is attached to the decorative case with the connector plug and the connector seat connected, the curved portion of the lid and the locking portion of the connector plug are in the rotational direction of the connector plug. On the other hand, because the connector plug is configured to be fitted so as to prevent disconnection in the direction in which the connector plug is disconnected from the connector seat,
When the lid is attached to the opening in a state where the connector seat and the connector plug are connected, a plug connection is obtained by fitting the curved portion and the locking portion formed in the lid. Even with this method, it is possible to provide a high-frequency device in which the connector plug is difficult to be removed from the connector seat.

According to a third aspect of the present invention, there is provided a case in which at least a connector seat is attached, a decorative case that houses the case and has an opening formed to project the connector seat, and the connector seat projects. In a high-frequency device connector prevention tool comprising a lid body that can close the opening,
A locking portion is formed on the outer periphery of the cylindrical plug housing portion provided in the connector plug inserted into the connector seat, and the lid body includes the connector plug and the connector seat. When attached to the decorative case in a connected state, the curved portion formed on the lid and the engaging portion formed on the connector plug are fitted to each other, thereby rotating the connector plug in the rotation direction. On the other hand, since it is configured to be freely rotatable, the connector plug is configured to prevent the connector plug from coming off from the connector seat.
When the lid is attached to the opening in a state where the connector seat and the connector plug are connected, the lid is formed by fitting the curved portion formed in the lid and the locking portion. The body can be provided as a connector removal prevention tool suitable for a high frequency device of a plug connection system in which the connector plug is difficult to be removed from the connector seat.

Since the invention of claim 4 comprises the high frequency device according to claim 1 or claim 2 or the connector disconnection prevention tool according to claim 3, the wiring system is configured.
It is possible to provide a wiring system that is highly reliable and easy to install, even with a plug connection type connection.

According to a fifth aspect of the present invention, in the high-frequency device according to the first or second aspect, the connector disconnection prevention device according to the third aspect, or the wiring system according to the fourth aspect, the connector plug and the connector seat are coaxial F. Since it is configured for use with a TV joint receiving device configured in a mold, it is possible to provide a high-reliability and simple mounting high-frequency device or wiring system or TV joint receiving system even with a coaxial F-type plug connection system. .

Hereinafter, an example of an embodiment embodying the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a power supply unit as an embodiment of a high-frequency device provided with a connector disconnection preventing tool according to the present application, and FIG. 2 is an exploded perspective view. 3 (a) and 3 (b) show an embodiment showing the shape of the locking portion formed in the plug receptacle portion of the connector plug. 4 is a cross-sectional view taken along line AA in FIG. FIG. 5 is a front view showing a dimensional relationship between the connector disconnection prevention tool and the locking portion. FIG. 6 is an example of a television joint reception system using the connector disconnection prevention device of the present application.
In the following description, directions are indicated with reference to the directions in the state in FIG. 1 unless otherwise specified. (For example, the mounting direction of the connector plug is the front side.)

As a preferred example of the high-frequency device of the present application, a power supply unit of a power supply separation type booster for a television joint receiving device will be described based on the drawings.
In the embodiment of the present application, reference numeral 1 denotes a power supply unit. For example, a power supply circuit, a high-frequency passage circuit, a power supply separation filter, etc. The configured printed wiring board 11 is accommodated, and signals transmitted via the antennas 31 and 32, the booster 33, the distributor 34, the TV terminal 36, the coaxial cables 35, 9 and the like are transmitted from the input terminal IN to the printed wiring board. 11 is connected to the output terminal OUT via a power supply separation filter and a high-frequency passage circuit, and the output terminal OUT is configured to transmit a high-frequency signal to the television receiver 40 or the like via the coaxial cable 8. ing.
Further, the input terminal IN supplies power to the booster 33 by superimposing, for example, a DC 15V power generated in the power circuit on the high-frequency signal line formed on the printed wiring board from the power separation filter. It is configured to be able to.

Further, in the power supply unit 1 of the present application, at least a high-frequency circuit part that allows the television signal input from the booster 33 through the coaxial cable 35 or the like to pass is made of a metal material so as not to be disturbed by external interference radio waves. It is formed so as to be housed in a case 2 molded with a mold, and has a good shielding property.
The case 2 is integrally formed with a frame 3 formed by bending a metal material, and a locking claw capable of closing the opening end of the frame 3 and slidingly fixing the peripheral edge of the opening end to the periphery. In the present embodiment, the input terminal IN and the output terminal OUT are attached to the front side surface 3a of the case 2 by crimping caulking or the like. In the embodiment of the present application, the case lid 4 is configured so as to be covered from the upper surface direction of the frame 3, and the conductive material in the printed circuit board 11 is used as a shield material at the opening end on the bottom surface side of the case 2. , And is fixed to the printed circuit board 11 by means such as soldering.
In the embodiment of the present application, male screws are formed on the peripheral surfaces of the respective connector seats IN and OUT provided in the input terminal IN and the output terminal OUT, either in a plug connection method or a screw connection method. It is configured to be compatible. In this embodiment, the input terminal IN and the output terminal OUT are connector seats shown in the claims.

The case cover 10b of the decorative case 10 has a depth corresponding to the case 2 provided with the connector seat so that the coaxial cables 8 and 9 can be wired from the outside to the connector seat. The opening 12 is formed by a side wall formed so as to surround from the three directions of the direction and the left-right direction, and the case 2 is housed in the opening 12, and the connector seat is a front side direction of the decorative case 10. It is arrange | positioned so that it may protrude.

Further, a lid 15 is attached to the opening 12 of the case cover 10b. The lid body 15 is molded by a mold using the same material as the decorative case, and a wall surface 15b disposed at a position facing the upper surface plate 15a and the side surface 3a of the case 2 provided with the connector seat. The cross section is formed in a substantially square shape.
Further, the wall surface 15b is connected to the notch portions 16a and 17a cut out from the lower end of the wall surface 15b at positions facing the plug seat axis direction, and the connector 15a and 17a. Curved portions 16b, 17b that are concentrically formed with respect to the central axis of the connector seat in a state of enclosing at least half of the circumference of the seats IN, OUT and closing the opening by the lid 15; Concave portions 16 and 17 are provided.
Reference numeral 18 denotes a locking claw integrally formed from the upper surface plate, which is an opening formed in the case cover 10b and faces the locking claw 18 in a state where the lid 15 is attached to the opening. The lid 15 and the case cover 10b are detachably fixed by fitting in the locking holes 13 formed at the positions. The engaging claw 18 and the engaging hole 13 form the engaging means described in the claim hole.

8 and 9 are coaxial cables having a coaxial F-type connector plug attached to the tip. The coaxial F-type connector shown in the embodiment of the present application is composed of cylindrical plug housing portions 8a and 9a and sleeves 8b and 9b which are inserted into the connector seats IN and OUT. The plug accommodating portions 8a and 9a are formed by molding a metal material. In the embodiment of the present application, the connector accommodating portions 8a and 9a are provided with a spring property so as to be slidably fixed to the connector seat. In addition, in order to improve attachment property, you may provide the spring material which consists of an elastic member in the inner periphery of the said receptacle accommodating part. In addition, locking portions 18 and 19 are integrally formed in the vicinity of the outer peripheral ends of the plug accommodating portions 8a and 9a so as to protrude outward from the peripheral surface. A specific embodiment of this locking portion is shown in FIG. (A) is a projection projecting from the peripheral surface of the plug housing portion, and (b) is a recess formed on the peripheral surface of the plug housing portion.

Next, the structure for preventing the connector plug and the connector seat from coming off will be described in detail.
The lid 15 shown in the present application closes an opening formed for facilitating the connection to the connector seat from the outside of the decorative cover 10 and gives the appearance of the cosmetic case 10 an aesthetic appearance. The connector is configured to have the function of a connector removal prevention tool formed so as to prevent the connector from falling off in a state where the seat and the connector plug are connected.
FIGS. 4 and 5 show an embodiment of the method for attaching the lid 15 at this time and the fitting state between the lid 15 and the connector plugs 8 and 9. 4 is a cross-sectional view taken along the line AA shown in FIG. 2, and FIG. 5 is a front view as seen from the protruding direction of the connector seat.

The coaxial cables 8 and 9 in which the locking portions 18 and 19 are formed are connected to a plug seat provided in the case 2. Next, the cover 15 is attached to the opening 12 of the case cover 10b. At this time, the width W1 of the notches 16a and 17a forming the recesses 16 and 17 formed in the connector removal prevention tool 15 is determined by the connector plug. 4 is formed with dimensions slightly larger than the outer width W2 of the receptacle housing portions 8a, 9a, and the positions of the cutout portions 16a, 17a are in the direction toward the front side of the receptacle housing portions 8a, 9a (the receptacle housing in FIG. 4). (The right direction of the portion) is placed, and then placed on the opening so as to allow the plug housing portions 8a and 9a to be inserted therethrough.
At this time, step portions 12a and 12a are formed at the upper end portions of the side walls in the left and right direction forming the opening portion 12, so that the step portions 12a and 12a and the step portions 12a and 12a It is comprised so that the back surface of the both ends of the said cover body 15 may contact | abut.

Next, the lid 15 in such a state is pressed in the left direction in FIG. 4 of the case cover, so that the locking claw 18 formed on the lid 15 and the opening 12 of the case cover 10b are provided. The lid 15 is detachably fixed to the case cover 10b by the locking means including the locking holes 13.
Furthermore, in this state, it is located in the outward direction of the inner peripheral side peripheral portions of the curved portions 16b and 17b formed on the wall surface 15b of the lid body 15 and the locking portions 18 and 19 formed on the plug receiving portions 8a and 9a. It is comprised so that the side surface to contact | abut or may be located in the vicinity.

The curved portions 16b and 17b are concentric with respect to the central axis of the connector seat so as to surround at least half of the circumference of the connector seat IN and OUT when the lid 15 is attached to the case cover 10b. The outer dimension W3 of the locking parts 18 and 19 formed in the plug accommodating parts 8a and 9a is the inner diameter dimension of the curved parts 16b and 17b (that is, the minimum dimension of the opening width of the notch part). Since it is formed to be larger than W1, it is the half circumference of the side surface located in the outward direction of all the peripheral portions on the inner surface side of the curved portions 16b and 17b and the locking portions 18 and 19 formed in the plug receiving portions 8a and 9a. Are configured to face each other. Therefore, even if the lid 15 is detachable in the state where the connector is connected, the connector plug of the coaxial cable can be provided with the maximum area of the engaging portion facing the connector seat. It is possible to provide a connector disconnection prevention structure that can be rotated in the rotation direction and difficult to be pulled out in the pull-out direction.
In the embodiment of the present application, when the lid 15 is attached to the case cover 10b in a state where the connector is connected, the inner peripheral edge portions of the curved portions 16b and 17b formed on the wall surface 15b of the lid 15 are provided. In this example, the engaging portions 18a and 9a formed on the plug accommodating portions 8a and 9a are in contact with each other or are located in the vicinity of the side surfaces. , 19 is formed so as to have a recess as shown in FIG. 3 (b), the bending portion is fitted into the recess of the locking portion so as to be fitted. What is necessary is just to comprise the attachment of 15 so that a curved part may be fitted to a latching | locking part from the upper direction of a decorative case, for example.

A construction example of the television joint reception system using the connector disconnection prevention tool 15 configured as described above will be described with reference to FIG.
In this embodiment, for example, a signal is drawn into the house via the booster 33 to the lead-in wires from the antennas 31 and 32, the signal is divided into two by the two distributor 34, and then drawn from the television terminal 36 via the coaxial cable 35. An example is shown. In the case of such normal joint reception work, the connector seat provided in the power supply unit 1 and the coaxial F-type connector plug are fixed by screwing the female screw and the male screw in order to improve the connection reliability. Although it was common to connect using what was configured in. For example, in the case of cables 8 and 9 that are connected from the TV terminal 36 to the power supply unit 1 and from the power supply unit 1 to the television receiver 40, even a general user may attach or detach them, and plug connection With this type of connector connection, it is easy to attach and detach, and the attachment of the F-type connector plug to the end of the coaxial cable can be done easily.
However, the plug connection method has a problem in terms of reliability because the connection state may be loosened due to its simplicity.

On the other hand, by using the power supply unit 1 provided with the connector disconnection prevention tool 15 of the present application, even if the plug connection and the connector seat are slidably fixed by sliding fixation, easy plug connection, By preparing the locking part in a pre-formed connector plug and making it fit in the recess formed on the lid, the ease of installation is exactly the same as the plug connection method, Therefore, it is possible to provide a joint receiving device having a highly reliable connector disconnection prevention device that prevents the connector plug from being detached from the connector seat.
In addition, connector plugs are generally sold, even if they are coaxial cables with plugs and the like that are not formed with locking parts, even if they are connected by screwing, Since the connector disconnection prevention tool 15 of the present application can be connected without impairing the mounting property, it is possible to provide a joint reception related device and a wiring system that are completely free from problems in terms of versatility.

The present invention is not only used in the power supply unit as shown in the above embodiment, but may also be applied to reception related equipment such as a video booster, and further, the configuration of each unit without departing from the spirit of the present invention. It is also possible to carry out by appropriately changing.

It is a perspective view which shows embodiment of the high frequency device provided with the connector removal prevention tool which concerns on this application. It is a disassembled perspective view. (A) It is an Example which shows the shape of the latching | locking part of a connector plug. (B) is an Example which shows the different shape of the latching | locking part of a connector plug. It is the sectional view on the AA line of FIG. It is a front view which shows the dimensional relationship between a connector removal prevention tool and a latching | locking part. It is an example of the television joint reception system using the connector omission prevention tool of this application.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Power supply part (high frequency apparatus), 2 ... Case, 3 ... Frame, 3a ... Side surface, 4 ... Case cover, 5 ..., 6 ..., 7 ... AC cord, 8/9 ... Coaxial cable, 8a / 9a ... Plug housing portion, 8b and 9b ... sleeve, 10 ... decorative case, 10a ... case body, 10b ... case cover, 11 ... printed wiring board, 12 ... opening, 12a ... step, 13 ... locking hole, 15 ... Cover, 15a ... Upper surface, 15b ... Side wall, 16/17 ... Recess, 16a / 17a ... Notch, 16b, 17b ... Curved part, 18 ... Locking part, 30 ... Building, 31 ... Under the eaves (installation surface) , 31.32 ... antenna, 33 ... booster, 34 ... distributor, 35 ... coaxial cable, 36 ... TV terminal, 37/38 ... TV connection cable, 40 ... TV receiver

Claims (5)

A case with at least a connector seat attached, a decorative case that houses the case and has an opening formed so that the connector seat protrudes, and the opening can be closed with the connector seat protruding In high frequency equipment consisting of a formed lid,
The decorative case and the lid are provided with engaging means so as to be detachably fixed,
A wall surface disposed at a position orthogonal to the axis of the connector seat in the lid body has a notch portion that is slightly larger than the outer diameter of the connector seat and is notched from one end of the wall surface, and the notch A curved portion formed concentrically with respect to the central axis of the connector seat in a state where the opening is closed by the lid body, the size of the connector seat being continuous and at least half the circumference of the connector seat A high-frequency device characterized in that a recess made of is formed.
A locking portion is formed on the outer periphery of the cylindrical plug housing portion provided in the connector plug inserted into the connector seat,
When the lid is attached to the decorative case with the connector plug and the connector seat connected, the curved portion of the lid and the locking portion of the connector plug are in the rotational direction of the connector plug. 2. The high-frequency device according to claim 1, wherein the high-frequency device is configured so as to be freely rotatable and to be fitted so as to prevent the connector plug from coming off from the connector seat.
A case with at least a connector seat attached, a decorative case that houses the case and has an opening formed so that the connector seat protrudes, and the opening can be closed with the connector seat protruding In a high-frequency equipment connector prevention tool comprising a formed lid,
A locking portion is formed on the outer periphery of the cylindrical plug housing portion provided in the connector plug inserted into the connector seat,
When the lid is attached to the decorative case in a state where the connector plug and the connector seat are connected to each other, the lid has a curved portion formed on the lid and a latch formed on the connector plug. When the connector plugs are engaged with each other, the connector plug is configured to be rotatable in the rotation direction of the connector plug and to prevent the connector plug from being removed from the connector seat. Features a connector removal prevention tool.
A wiring system comprising the high frequency device according to claim 1 or the connector disconnection preventing tool according to claim 3.
The high-frequency device according to claim 1 or 2, or the connector disconnection preventing device according to claim 3, wherein the connector seat and the connector plug are television joint receiving devices configured in a coaxial F type. Or the wiring system of Claim 4.

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