JPH11250998A - Receptacle strip provided with switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a convenient receptacle strip provided with a switch by which a power to electric equipment connected to a receptacle main body can be turned on/off on the receptacle side. SOLUTION: On the side face in the longitudinal end of a case, a hole 54 is arranged to expose the operation part 45 of a switch SW. The switch SW is housed in the case with the operation part 45 exposed through hole 54. As the switch SW is inserted between an external electric cable 9 and a receptacle main body 2, electricity supply from an external power supply to the receptacle main body 2 can be turned on/off by one operation when the switch SW is turned on/off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power strip with a switch.

[0002]

2. Description of the Related Art Conventionally, there has been provided a table tap in which an outlet body having a blade receiving spring is housed in a case. Such a table tap is used, for example, for supplying power to a personal computer (hereinafter abbreviated as a personal computer) and peripheral devices such as a printer and a modem.

[0003]

However, with the spread of personal computers in ordinary households, the number of users who connect not only the personal computer itself but also the peripheral devices such as printers and modems as described above when using the personal computer has increased. Nevertheless, there is a problem that turning on / off the power of each device requires individually operating power switches provided individually for each device, which is not convenient.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides an easy-to-use power strip with a switch that can turn on and off the power supply of an electric device connected to an outlet body on the power strip side. What you want to do.

[0005]

In order to solve the above-mentioned problems, the invention according to claim 1 is directed to an outlet main body having a blade receiving spring and the outlet main body which is performed through an external electric wire connected to an external power supply. A switch for turning on and off the power supply to the socket, a plug insertion hole corresponding to the blade receiving spring, and a case in which the outlet body and the switch are provided. The power of the electrical device can be turned on and off on the side of the power strip, thereby providing an easy-to-use power strip with a switch.

According to a second aspect of the present invention, in the first aspect of the present invention, the operation portion of the switch is exposed from a side surface of the case, so that the operation of the switch body is facilitated. According to a third aspect of the present invention, in the first aspect of the present invention, the outlet body includes one or more pairs of blade receiving springs, a conductor that electrically connects the blade receiving springs to each other, and the conductor is connected to an external electric wire. It is characterized by comprising an outlet core block in which a power supply terminal piece for electrical connection is integrated, and an inner case for accommodating the outlet core block. In this case, a blade receiving spring, a conductor, and a power supply terminal are provided. Can be easily assembled in the inner case, and the external wires and the outlet core block can be easily connected, so that the assemblability of the outlet is improved.

According to a fourth aspect of the present invention, in the first aspect of the present invention, the case is formed of a thermoplastic synthetic resin, thereby improving impact resistance. According to a fifth aspect of the present invention, in the first aspect of the present invention, a magnet that is magnetically attached to a metal desk, cabinet, or the like is provided on the back side of the case,
By magnetically attaching the magnet to the metal surface, the switch-equipped table tap can be easily installed in a place other than the floor, and the table tap does not roll on the floor and become obstructive.

According to a sixth aspect of the present invention, in the first aspect of the present invention, a noise filter circuit for attenuating noise is provided between the external electric wire and the outlet main body. Can be suppressed from propagating to the electric device connected to the communication device. According to a seventh aspect of the present invention, in the first aspect of the present invention, a connection surface on a side provided with a blade of an AC adapter for supplying a direct current to an electric device is provided adjacent to a blade insertion hole provided on a front surface of the case. It is characterized in that an adapter mounting surface for mounting is provided, and the plug blade of the AC adapter is inserted into the blade receiving spring from the blade insertion hole, and the adapter is mounted on the adapter mounting surface, The AC adapter can be stably connected to the power strip.

According to an eighth aspect of the present invention, in the first aspect of the present invention, a plurality of pairs of blade receiving springs are formed in the front surface of the case, and each of the holes is located at both ends in the longitudinal direction of the case. Adjacent to a pair of blade insertion holes, each of which is provided with an adapter mounting surface for mounting a connection surface on a side provided with a blade of an AC adapter that supplies a direct current to an electric device, By inserting the plug blade of the AC adapter into the blade receiving spring from the blade insertion hole and mounting the adapter on the adapter mounting surface, the AC adapter can be stably connected to the table tap, and the AC adapter can be connected to the case with the case. Both ends in the longitudinal direction can be connected to the power strip.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. As shown in FIG. 1, a power strip with a switch (hereinafter, abbreviated to “power strip”) 1 of the present embodiment is an outlet main body in a case 3 composed of a substantially box-shaped body 3a and a cover 3b. 2 and a switch SW for turning on / off the power supply to the outlet main body 2 are provided.

The outlet body 2 comprises a four-port outlet core block 13A and a four-port outlet core block 1A.
And an inner case 14 in which 3A is housed. First, the inner case 14 has an inner body 14a formed of a molded product.
And an inner cover 14b. Inner cover 1
4b, four diaper-shaped plug blade receiving ports 31 are formed in a row at positions corresponding to the four blade receiving springs 7 of the four-port outlet core block 13A. By the way, a blade 4a such as a power plug of an electric device such as a personal computer is attached to a blade receiving spring 7a.
When the plug is inserted into or removed from the plug, an arc may be generated and heat may be generated at a contact portion between the blade 4a and the blade receiving spring 7, so that the outlet core block 13 having the blade receiving spring 7 is provided. The inner case 14 to be mounted is particularly required to have heat resistance. On the other hand, since the table tap 1 is used movably, it may drop or hit another article, and the case 3 that covers the inner case 14 is required to have impact resistance. Here, since it is difficult to satisfy the heat resistance and the impact resistance with the same material, in the present embodiment, the inner case 14 is formed of a thermosetting synthetic resin having heat resistance. The inner case 14 is covered with a case 3 made of a thermoplastic synthetic resin having a property. Of course, both the inner case 14 and the case 3 may be formed of a thermoplastic resin, or both may be formed of a thermosetting resin.

The inner case 14 is assembled by caulking and connecting the inner body 14a and the inner cover 14b with studs 15. As shown in FIG. 4, two caulking connection holes 32 and 33 are formed in the inner body 14a and the inner cover 14b. The caulking connection hole 32 of the inner body 14a is composed of a boss standing upright in the thickness direction of the inner body 14a. A stud 15 is inserted into the boss from the back surface of the inner body 14a, and the tip of the stud 15 is attached to the inner cover 14.
b, the inner body 14a and the inner cover 1 are protruded from the connection hole 33 and both ends of the stud 15 are caulked.
4b can be firmly fixed, assembling is easier than in the case of screw fixing, and even if the appearance of the swaged portion of the stud 15 is poor, the inner case 14 is housed in the case 3 so that Invisible, the appearance of the case 3 is not impaired.

The four-port outlet core block 13 housed in the inner case 14 has four blade receiving springs 7, a conductor 8 for electrically connecting the blade receiving springs 7, and an external conductor 8 connected to the outside. The power supply terminal strip 11 for electrically connecting to the electric wire 9 is integrally formed. In the present embodiment, the conductor 8
4 includes two conductive bars 34 as shown in FIG. 4. One conductive bar 34 has four blade receiving spring halves 7a integrally formed, and one end of the conductive bar 34 has a power supply terminal piece. 11, a connection terminal piece 12 is integrally formed at the other end,
The other conductive bar 34 is formed integrally with four blade receiving spring halves 7a, and the power supply terminal strip 11 is formed integrally at one end of the conductive bar 34 and the connection terminal strip 12 is formed integrally at the other end. I have. By combining the two conductive bars 34, a four-port outlet core block 13A in which four blade receiving springs 7 are provided in a row is formed, and this is connected to the outlet core block housing provided in the inner body 14a. The four outlet main body 2 is configured by being housed in the portion 37 and assembling the inner cover 14b from above.
Reference numeral 38 in FIG. 3 denotes a partition wall for separating the conductive bars 34 from each other in the inner body 14a.

The above-described four-port outlet core block 13A
The pair of power supply terminal pieces 11 are integrally provided with a caulking crimping portion 10 to which the external electric wire 9 is connected by caulking crimping. The crimping and crimping portion 10 is made of a metal material, and by inserting and crimping the external wire 9 therein, electrical and mechanical connection between the external wire 9 and the power supply terminal strip 11 can be easily and reliably performed. As a result, the workability of assembling the outlet core block 13A is improved.

On the other hand, the case 3 is constructed by assembling a body 3a and a cover 3b formed in a substantially box shape with a thermoplastic synthetic resin using assembling screws. On the front surface of the cover 3b, four blade insertion holes 6 corresponding to the blade receiving springs 7 of the outlet main body 2 and exposing the respective blade receiving holes 31 are provided.
Are arranged along the longitudinal direction. An external electric wire 9 is led out from one longitudinal end of the case 3. here,
In the case 3, a tension removing unit 20 for removing a tension applied to a portion of the external electric wire 9 connected to the power supply terminal strip 11 is provided. As shown in FIG. 5, a flat bushing 40 is attached to the outer peripheral portion of the external electric wire 9 drawn into the case 3 as the tension removing means 20, and this bushing 40 is attached to the end wall 3c of the body 3a and the end wall 3c. While holding and holding between the wall portion 3d standing upright with a gap,
Power supply terminal strip 11 of wall 3d of body 3a and inner case 14
Between the first wire holding portion 41 and the second wire holding portion 41 having different heights.
Of the first and second wire holding portions 42 and the inner surface of the cover 3b when the body 3a and the cover 3b are assembled. External wires 9a and 9b are sandwiched between them. Here, the height of the second electric wire pressing portion 42 is made higher than that of the first electric wire pressing portion 41, whereby the external electric wires 9 a and 9 b can be strongly pressed as approaching the caulking and crimping portion 10. The effect of removing the tension of the wire 9 can be enhanced.

On the other hand, an exposure hole 54 for exposing the operation portion 45 of the switch SW is provided on the side surface of the other end in the longitudinal direction of the case 3. The switch SW is exposed so that the operation portion 45 is exposed from the exposure hole 54. Is placed in the case 3. This switch SW is a large-sized continuous wiring device of one module size standardized for an embedded wiring device,
It is housed in a switch housing recess 55 provided at the longitudinal end of the body 3a so as to communicate with the exposure hole 54. Here, a pair of ribs 56a, 56b is protruded from a side surface of the switch housing recess 55 facing the short width direction of the case 3, and a pair of ribs (not shown) are similarly protruded from the cover 3b side. And
A locking groove 57 formed between the ribs 56a and 56b
Then, the switch SW is fixed to the body 3a and the cover 3b by inserting and locking the locking claw 46 of the switch SW.

Further, a rod-type crimp terminal 9c attached to the end of one of the wires 9b of the external wire 9 is connected to the terminal portion of the switch SW, and one of the connection terminal strips 12 of the outlet main body 2 is connected to the same. They are connected by a lead wire 50. Thus, as shown in the circuit diagram of FIG. 2, the switch SW is inserted between the external electric wire 9 and the outlet main body 2, and by turning on and off the switch SW, the external power supply is connected to the outlet main body 2. Can be turned on and off collectively, and the usability can be improved. In this embodiment, since a commercially available switch SW is used,
There is an advantage that cost can be reduced as compared with a case where a dedicated switch is provided.

A noise filter circuit F including a capacitor C ₁ , a resistor R ₁ , and a surge absorbing element Z ₁ is connected between the switch SW and the outlet main body 2, so that noise transmitted from an external power supply is connected. In order to suppress the influence of noise on the electrical equipment connected to the outlet main body 2. Further, between the noise filter circuit F and the outlet main body 2, an energization indicating lamp La composed of a neon tube and displaying an energized state (on / off state of the switch SW) to the outlet main body 2 and a current limiting resistor R _2.
Are connected in parallel.

The circuit components constituting the noise filter circuit F, the power indicator lamp La and the resistor R ₂ are mounted on a circuit board 30 and housed in a case 3. Circuit board 3
0 is connected to a pair of lead wires 51, and the other end of each lead wire 51 is connected to the connection terminal strip 12 of the outlet main body 2. The cover 3b is provided with a light-transmitting hole 52 at a position facing the energizing display lamp La, and a light-transmitting lamp cover 53 is fitted into the light-transmitting hole 52, and the light-transmitting hole 52 and the lamp cover 53 The lighting and extinguishing of the energization display lamp La can be confirmed through the switch.

By the way, flat adapter mounting surfaces 5 extending in the longitudinal direction of the case 3 are respectively adjacent to the two blade insertion holes 6 located at both longitudinal ends of the front surface of the case 3 (cover 3b). Is formed. The adapter mounting surface 5 has substantially the same size as the connection surface 4c of the AC adapter 4 on the side where the blade 4a is provided. The AC adapter 4 is used to supply a direct current to OA equipment such as a personal computer, for example, and has a pair of blades 4a protruding from a connection surface 4c of an adapter body 4b as shown in FIG. Power cord 4c from the side of body 4b
Is out. With the connection surface 4c of the AC adapter 4 mounted on the adapter mounting surface 5, the AC adapter 4
By inserting the blade 4a into the blade receiving spring 7 from one blade insertion hole 6 and rotating the adapter body 4b, AC
The adapter 4 can be mechanically and electrically connected to the outlet main body 2.

When the AC adapter 4 is connected to the power strip 1, as shown in FIG.
While the connection surface 4c of the C adapter 4 is placed on the flat adapter mounting surface 5, the blade 4a of the AC adapter 4 is inserted into the blade receiving spring 7 from the blade insertion hole 6 and connected. It does not protrude from the outside of the power strip 1 and can be connected stably, so that there is no danger that the AC adapter 4 will come off from the power strip 1, the power will be cut off carelessly, and the data being input to the personal computer etc. will be erased. Problem can be solved. Moreover, since the adapter mounting surface 5 has the same size as the connection surface 4c of the AC adapter 4, the AC adapter 4 is accommodated in the adapter mounting surface 5 and the plurality of blade insertion holes 6 are formed by the AC adapter 4. As a result, the plug and the like can be connected together with the AC adapter 4 while having a structure that can stably support the AC adapter 4 on the power strip 1. In this embodiment, two blade insertion holes 6 at both ends in the longitudinal direction are provided.
Since the adapter mounting surface 5 is provided adjacent to the power supply, two AC adapters 4 can be connected to the power strip 1 at the same time, which is very convenient.

On the back side of the outer body 3a, as shown in FIGS. 11 and 12, there is provided a magnet accommodating recess 22 for accommodating a magnet 21 magnetically attached to, for example, a metal desk or cabinet. ing. The magnet 21 of the present embodiment is configured by fixing a permanent magnet 21a to an outer peripheral frame 21b having a substantially U-shaped cross section. The magnet housing recesses 22 for housing the magnet 21 are formed at both ends in the longitudinal direction of the back surface of the body 3a. Each section is provided. A locking claw 23a protrudes from one end of an outer peripheral frame 21b of the magnet 21, and a hook 23b is provided on one wall of the magnet housing recess 22 to which the locking claw 23a can be engaged. And these locking claws 23a and hooks 23b
Magnet locking means 23 for locking the magnet 21 is formed in the magnet storage recess 22. That is, when the magnet 21 is pushed into the magnet storage recess 22, the hook 23b of the magnet 21 engages with the hook 23b.
The magnet 21 can be locked with one touch by being caught and prevented from slipping off. By magnetizing the magnet 21 on a metal surface such as a metal desk or cabinet, the table tap 1 can be easily placed on a place other than the floor. And the tap 1 can be prevented from rolling on the floor and out of the way.

Here, when the table tap 1 of the present embodiment is installed on a side surface (substantially vertical surface) of a desk or cabinet, the operation unit 45 of the switch SW is exposed from one side surface of the case 3 in the longitudinal direction. Therefore, there is an advantage that the operation of the switch SW is very easy. In the present embodiment, the inner body 14a and the inner cover 1 are connected by caulking.
4b, but is not limited to this. For example, as shown in FIG. 14, a fitting portion 18 is provided on the inner body 14a, and the inner cover 14b is hooked and locked to the fitting portion 18. A fitting claw 19 may be provided. In this case, only by pressing the inner cover 14b against the inner body 14a and fitting the fitting claw 19 to the fitting portion 18, the inner cover 14b can be assembled to the inner body 14a with one touch and securely. Moreover, as in the case of screwing with an assembly screw, the inner body 14a
Since the fine positioning between the inner cover 14b and the inner cover 14b is not required, it is easy to manufacture, which is advantageous in terms of equipment and cost, and the inner body 14a and the inner cover 14b.
Since it is not necessary to open a screw hole in each case, it is possible to prevent the strength of the entire inner case 14 from being reduced by opening the screw holes, to sufficiently cope with a drop or a collision, etc. Obtainable.

[0024]

According to the first aspect of the present invention, there is provided an outlet body having a blade receiving spring, a switch for turning on and off power supply to the outlet body via an external electric wire connected to an external power supply, and the blade receiver. Since there is a plug blade insertion hole corresponding to the spring and a case in which the outlet body and the switch are provided, the power of the electric device connected to the outlet body is turned on / off on the power strip side. Thus, there is an effect that a table tap with a switch that is easy to use can be provided.

According to the second aspect of the present invention, since the operation portion of the switch is exposed from the side of the case, the operation of the switch body is facilitated. According to a third aspect of the present invention, the outlet body includes one or more pairs of blade receiving springs, a conductor that electrically connects the blade receiving springs to each other, and a power supply terminal that electrically connects the conductor to an external electric wire. Consists of an outlet core block in which the piece is integrated and an inner case that houses the outlet core block. In this case, the blade receiving spring, conductor, and power supply terminal can be easily assembled in the inner case. In addition, the external electric wire and the outlet core block can be easily connected, and there is an effect that the assemblability of the outlet is improved.

According to the fourth aspect of the present invention, since the case is formed of a thermoplastic synthetic resin, there is an effect that the impact resistance is improved. The invention of claim 5 is
A magnet that is magnetically attached to a metal desk or cabinet is arranged on the back side of the above case.By attaching the magnet to the metal surface, the table tap with switch can be easily installed on places other than the floor. This has the effect of preventing the table tap from rolling on the floor and obstructing it.

According to the sixth aspect of the present invention, since the noise filter circuit for attenuating noise is provided between the external electric wire and the outlet main body, the noise is transmitted from the external power supply to the electric equipment connected to the outlet main body. There is an effect that can be suppressed. The invention according to claim 7, wherein an adapter for mounting a connection surface on a side provided with a blade of an AC adapter for supplying a direct current to an electric device is provided adjacent to a blade insertion hole provided on a front surface of the case. Since the mounting surface is provided, the AC adapter can be stably connected to the power strip by inserting the blade of the AC adapter into the blade receiving spring from the blade insertion hole and mounting the adapter on the adapter mounting surface. This has the effect.

[0028] The invention according to claim 8 is characterized in that:
A plug blade of an AC adapter for forming a blade insertion hole corresponding to a plurality of pairs of blade receiving springs, and adjacent to each pair of blade insertion holes located at both ends in the longitudinal direction of the case, for supplying a direct current to an electric device. Since the adapter mounting surface for mounting the connection surface on the side where is provided is provided, the blade of the AC adapter is inserted into the blade receiving spring from the blade insertion hole and the adapter is mounted on the adapter mounting surface. By doing, AC
The adapter can be stably connected to the power strip, and the AC adapter can be connected to the power strip at both ends in the longitudinal direction of the case.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment.

FIG. 2 is a circuit configuration diagram of the above.

FIG. 3 is an exploded perspective view of the four-port outlet core block according to the first embodiment;

FIG. 4 is an exploded perspective view illustrating an assembled state of the above-described four-port outlet core block.

FIG. 5 is a front view showing a state where the cover is removed.

FIG. 6 is a front view of the same.

FIG. 7 is a side view of the same.

FIG. 8 is a rear view of the above.

FIG. 9 is a partially broken side view of the same.

FIG. 10 is a perspective view of the same.

FIG. 11 is an exploded perspective view illustrating a mounting state of the magnet.

FIG. 12 is a cross-sectional view illustrating a magnet storage recess of the same case.

FIG. 13 (a) is a perspective view of the AC adapter of the above,
(B) is an explanatory view of an attached state of the AC adapter.

FIG. 14 is an exploded perspective view illustrating another example of an assembled state of the four-port outlet core block according to the first embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Table tap with switch 2 Outlet main body 3 Case 5 Adapter mounting surface 6 Blade insertion hole 7 Blade receiving spring SW switch

Claims (8)

[Claims] An outlet body having a blade receiving spring;
A switch for turning on and off the power supply to the outlet main body performed through an external electric wire connected to an external power supply, and a plug blade insertion hole corresponding to the blade receiving spring; And a case with a switch. 2. The table tap with a switch according to claim 1, wherein an operation portion of the switch is exposed from a side surface of the case. 3. The outlet main body includes one or more pairs of blade receiving springs, a conductor that electrically connects the blade receiving springs to each other, and a power supply terminal piece that electrically connects the conductor to an external electric wire. The power outlet tap with a switch according to claim 1, characterized in that the power outlet tap is constituted by an integrated outlet core block and an inner case for housing the outlet core block. 4. The table tap with a switch according to claim 1, wherein the case is formed of a thermoplastic synthetic resin. 5. The table tap with a switch according to claim 1, wherein a magnet magnetically attached to a metal desk or cabinet is disposed on the back side of the case. 6. The table tap with a switch according to claim 1, further comprising a noise filter circuit for attenuating noise between the external electric wire and the outlet main body. 7. An adapter mount for mounting a connection surface of an AC adapter on a side provided with a blade of an AC adapter for supplying a direct current to an electric device, adjacent to a blade insertion hole provided on a front surface of the case. The table tap with a switch according to claim 1, wherein a surface is provided. 8. A blade insertion hole corresponding to a plurality of pairs of blade receiving springs is formed in a front surface of the case, and a pair of blade insertion holes located at both ends in the longitudinal direction of the case are electrically connected to each other. The table tap with a switch according to claim 1, further comprising an adapter mounting surface for mounting a connection surface on a side on which the plug blade of the AC adapter that supplies direct current to the device is provided.