KR102626062B1 - Disk switchover type plug safe parating socket - Google Patents

Abstract

In order to simplify the configuration and improve safety during heat generation, the present invention provides a housing portion formed by electrically dividing a pair of mounting spaces through which a power supply insertion hole through which a power supply side connection line is inserted is formed on the lower surface of one side in the longitudinal direction; A terminal body provided on one side of the mounting space and electrically connected to the power connection line, and a plug connection portion extending from the terminal body toward the other side of the mounting space and forming a hollow portion into which a power plug is selectively inserted and electrically connected. A power terminal unit made of an electric current-conducting material and provided in pairs; a connection supporter provided on one side of the mounting space in the longitudinal direction and providing a pressing force so that the power-side connection line is supported in contact with the terminal body; A solenoid is provided in the center with a through hole communicating with the lower part of the hollow part, and has a first electrode exposed at the top and a second electrode in contact with the power terminal part, and is disposed at the bottom of the through hole to selectively supply power to the solenoid. A solenoid device including a plunger that is raised; and provided between the hollow part and the through hole, wherein when the ambient temperature of the housing part rises above a preset safe temperature, the plunger for disengaging the power plug upward from the hollow part is raised as the temperature rises. A circular power transfer type plug safety disconnect outlet is provided including a horizontally rotating temperature sensing cut-off unit that selectively energizes the first electrode by horizontally rotating thermal expansion and deformation.

Description

Disk switchover type plug safe paring socket}

The present invention relates to a cylindrical power transfer type plug safety separable outlet, and more specifically, to a cylindrical power transfer type plug removable outlet with a simplified configuration and improved stability when generating heat.

Generally, an outlet is equipped to insert a power plug provided at the end of a cord of various electrical appliances. These outlets are connected to indoor electrical wiring and are installed on walls or floors. Accordingly, when the power plug is connected to the outlet, power is supplied to the electric appliance through a cord.

Here, the outlet is provided with a ground terminal on one side connected to an external ground plane, and the power plug is provided with a ground terminal connected to the ground terminal. Through this, when the ground portion of the power plug is interconnected to the ground terminal portion of the outlet, even if an abnormal current occurs in the indoor wiring, damage and malfunction of the electrical appliance to which the outlet is connected can be prevented by being grounded through the ground terminal portion.

Additionally, the outlet is provided with a latching bar that is electrically connected to the ground terminal portion, and a pair of ground lines is electrically connected to the ground terminal portion as it contacts the latching bar. At this time, each of the ground lines is clamped and fixed between the head portion of the extension screw member and the locking bar as the extension screw member penetrating the locking bar is screwed with the end portion of the ground line peeled off.

However, conventional outlets do not have a separate device to detect and automatically block the flow of current even if high heat is generated inside the outlet case due to an internal defect or an external fire, which can lead to secondary safety accidents. There was a serious problem.

Korean Patent No. 10-1862667

In order to solve the above problems, the present invention aims to provide a circular power transfer type plug safety separation outlet with a simplified configuration and improved safety when generating heat.

In order to solve the above problem, the present invention includes a housing portion formed by electrically dividing a pair of mounting spaces formed through a power insertion hole through which a power supply side connection line is inserted on a lower surface of one side in the longitudinal direction; A terminal body provided on one side of the mounting space and electrically connected to the power connection line, and a plug connection portion extending from the terminal body toward the other side of the mounting space and forming a hollow portion into which a power plug is selectively inserted and electrically connected. A power terminal unit made of an electric current-conducting material and provided in pairs; a connection supporter provided on one side of the mounting space in the longitudinal direction and providing a pressing force so that the power-side connection line is supported in contact with the terminal body; A solenoid is provided in the center with a through hole communicating with the lower part of the hollow part, and has a first electrode exposed at the top and a second electrode in contact with the power terminal part, and is disposed at the bottom of the through hole to selectively supply power to the solenoid. A solenoid device including a plunger that is raised; and provided between the hollow part and the through hole, wherein when the ambient temperature of the housing part rises above a preset safe temperature, the plunger for disengaging the power plug upward from the hollow part is raised as the temperature rises. It includes a horizontally rotating temperature sensing block that selectively energizes the first electrode by horizontally rotating thermal expansion deformation, wherein the horizontal rotating temperature sensing blocking part covers the upper part of the solenoid device and has an edge of a through hole in the center communicating with the through hole. A rotation guider is formed on the upper side, A blocking cover made of an insulating material through which the first electrode and the second electrode are exposed, a first lower surface rotatably coupled to the rotation guider and electrically connected to the first electrode, and a first electrode for applying power. A first connection piece made of a conductive material having a first upper surface portion selectively connected to a connector is coupled to one edge in the circumferential direction, and one end is disposed on one side of the blocking cover to selectively rotate the rotation switching portion by thermal expansion. It provides a circular power transfer type plug safety disconnect outlet, wherein the other end includes a bimetal having a higher coefficient of thermal expansion on the outer surface than the inner part that is caught and in contact with the outer periphery of the rotary switching unit.

Through the above solutions, the present invention provides the following effects.

First, when the surrounding temperature of the housing part rises above the preset safe temperature, the connection support part and the solenoid device are energized through the bimetal that thermally expands and deforms, and the plunger is sucked upward through the magnetic force generated in the solenoid device and strikes the power plug upward. Accordingly, the power plug and the power terminal are separated and electrically blocked, thereby automatically blocking the current flow in the event of a fire, thereby preventing secondary safety accidents.

Second, since the horizontal rotating temperature sensing cut-off part is made of a bimetal that maintains a state of thermal expansion and deformation above a preset temperature, the upward suction state of the plunger is maintained through the magnetomotive force of the solenoid until it is cooled to the preset safe temperature range, thereby maintaining the power plug and power terminal part. Since the devices are separated, the electrical connection is fundamentally blocked, and the safety of use can be significantly improved.

Third, since the horizontal rotating temperature sensing cut-off unit and the solenoid device are mounted inside the cut-off case and provided as a single assembly, the mold of the housing part is simplified, reducing the defect rate, making assembly easy and driving reliability improved through accurate coupling between parts. In addition, maintainability can be significantly improved because only the horizontal rotating temperature sensing cutoff unit and the solenoid device can be separated and replaced or repaired and then reassembled.

Figure 1 is a perspective view of a circular power transfer type plug safety disconnect outlet according to an embodiment of the present invention.
Figure 2 is a top view showing the coupled state of a circular power transfer type plug safety disconnect outlet according to an embodiment of the present invention.
Figure 3 is an exploded perspective view of a circular power transfer type plug safety disconnect outlet according to an embodiment of the present invention.
Figure 4 is a cross-sectional example showing the coupling structure of the power supply side connection line according to an embodiment of the present invention.
Figure 5 is an exploded perspective view of a horizontal rotating temperature sensing cut-off unit and a solenoid device according to an embodiment of the present invention.
Figures 6 and 7 are illustrations showing the use state of a circular power transfer type plug safety disconnect outlet according to an embodiment of the present invention.
Figure 8 is an exploded perspective view of the rotation switching unit according to an embodiment of the present invention.
Figures 9a and 9b are exemplary diagrams showing the operating state of the horizontal rotating temperature sensing cut-off unit according to an embodiment of the present invention.
Figures 10a and 10b are illustrations showing the operating state of the solenoid device according to an embodiment of the present invention.

Hereinafter, a circular power transfer type plug safety disconnect outlet according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a perspective view of a circular power transfer type plug safety disconnect outlet according to an embodiment of the present invention, and Figure 2 is a top view showing the coupled state of a circular power transfer type plug safety disconnect outlet according to an embodiment of the present invention. .

And, Figure 3 is an exploded perspective view of a circular power transfer type plug safety disconnect outlet according to an embodiment of the present invention, and Figure 4 is a cross-sectional example showing the coupling structure of the power side connection line according to an embodiment of the present invention.

Next, Figure 5 is an exploded perspective view of the horizontal rotating temperature sensing cut-off unit and solenoid device according to an embodiment of the present invention, and Figures 6 and 7 are diagrams of a circular power transfer type plug safety disconnect outlet according to an embodiment of the present invention. This is an example diagram showing the state of use.

And, Figure 8 is an exploded perspective view of the rotation switching unit according to an embodiment of the present invention, and Figures 9A and 9B are exemplary diagrams showing the operating state of the horizontal rotary temperature sensing blocking unit according to an embodiment of the present invention. Next, Figures 10a and 10b are illustrations showing the operating state of the solenoid device according to an embodiment of the present invention. At this time, Figures 9a and 10a show the operating state of the circular power transfer type plug safe disconnection outlet 100 of the present invention when the surrounding temperature is below the safe temperature, and Figures 9b and 10b show the circular power transfer type plug safety disconnection outlet. It is desirable to understand it as an operating state when the ambient temperature of (100) is above the safe temperature.

Next, Figures 2 to 7 show a state in which the cover part 50 of the circular power transfer type plug safety disconnect outlet 100 of the present invention is separated and the interior of the housing part 10 is exposed, and the grounding member 60 ) and the ground stopper 70 are preferably understood to be omitted.

Also, it is preferable to understand that FIG. 10 is shown with the blocking case 81 and the blocking cover 41, which will be described later, omitted. Next, it is preferable that the circular power transfer type plug safety disconnect outlet 100 and the outlet 100, which will be described below, are understood to have the same meaning.

As shown in Figures 1 to 10b, the circular power transfer type plug safety disconnect outlet 100 according to an embodiment of the present invention includes a housing part 10, a power terminal part 30, a connection support part 20, It includes a solenoid device (80) and a horizontal rotating temperature sensing cutoff unit (40).

Referring to FIGS. 1 to 4, the housing portion 10 is preferably formed by having a pair of mounting spaces 12 electrically separated from each other with a partition wall 16 interposed therebetween. In addition, it is preferable that a power insertion hole 11 into which the power supply side connection line 1a is inserted is formed through a lower surface of one longitudinal side of each of the mounting spaces 12.

In detail, the housing portion 10 is preferably provided in the form of a box with an upper side open and at least one pair of mounting spaces 12 formed therein. At this time, in this embodiment, as an example, the mounting space 12 is divided on both sides through the partition wall 16 provided along the longitudinal direction in the center of the width direction of the housing portion 10 to form two locations. Although explained and illustrated, it is not limited thereto. In addition, the housing portion 10 is preferably made of an electrically insulating material such as synthetic resin, which can prevent short circuits between components fastened to each other and leakage of internal electricity.

In addition, as the mounting space 12 is divided into at least two or more pieces through the partition wall 16, the component parts can be partitioned and arranged to be spaced apart from each other within each mounting space 12, and the power supply side Even if a plurality of connection lines 1a are provided, mutual short circuits can be prevented. Here, the power insertion hole 11 is preferably formed on one side of each mounting space 12 in the longitudinal direction, and the power insertion hole 11 is preferably formed left and right symmetrically around the partition wall 16. do.

At this time, it is preferable that the upper side of each power insertion hole 11 communicates with one of the mounting spaces 12 and the lower side communicates with the outside so that the power supply side connection line 1a is inserted. In addition, a seating portion on which the grounding member 60 is seated in surface contact may be formed on the upper surface of the partition wall 16, and the grounding member 60 is disposed on the lower surface of the housing portion 10. It can be electrically connected to the holding bar 70 through an energizing screw or the like.

At this time, the configuration of the grounding member 60 and the grounding stopper 70 is disclosed in prior art outlets such as the applicant's registered patents Nos. 10-2058411, 10-1862667, and 10-1881107. , Anyone with general knowledge in the relevant field can easily carry out the procedure, so a more detailed explanation will be omitted.

Next, the connection support part 20, which will be described later, is received and fixed on one side of the mounting space 12, and the solenoid device 80, which will be described later, is inserted and fixed on the other side of the connection support part 20. ) is preferably formed.

Meanwhile, the cover part 50 is preferably coupled to cover the upper side of the housing part 10. A coupling fixing groove 53 into which the power plugs P1 and P2 are inserted is recessed in the upper surface of the cover part 50. In addition, the coupling fixing groove 53 may be formed with an inner contour that corresponds to or is smaller than the outer contour of the body (PA) of the power plug, and at least both sides that are symmetrical are formed with the outer surface of the body (PA) of the power plug. By partially fitting together, movement or random separation of the power plugs (P1, P2) can be prevented.

In addition, it is preferable that a power terminal hole 51 is formed on the bottom of the coupling fixing groove 53 so that the power plugs P1 and P2 can be inserted into electrical contact with the plug connection part 32, which will be described later. . In addition, a pair of ground terminal holes 52 through which the upper end of the ground member 60 penetrates may be formed on the bottom surface of the coupling fixing groove 53 and spaced apart from the power terminal hole 51. The power terminal hole 51 is preferably aligned at a position corresponding to the upper and lower sides of the hollow portion 34, which will be described later.

Here, the power terminal portions 30 are arranged along the longitudinal direction of each mounting space 12, and are preferably provided symmetrically in pairs. The power terminal portion 30 is made of a conductive material such as conductive metal such as brass, and preferably includes a terminal body 31 and the plug connection portion 32. At this time, the terminal body 31 is provided on one side of the mounting space 12 and is electrically connected to the power supply side connection line 1a, and includes a terminal upper surface portion 31a and a terminal contact surface portion 31b. desirable.

In addition, the terminal upper surface portion 31a is provided in a flat shape facing the bottom surface of one side of the mounting space 12 to cover the upper part of one side of the mounting space 12, and the terminal contact surface portion 31b is It is preferable that the terminal top surface portion 31a extends and is bent downward from one end.

At this time, the terminal contact surface portion 31b is preferably extended to correspond to the outer inner surface in the width direction of each mounting space 12 where the power insertion hole 11 is formed. Therefore, when the power supply side connection line (1a) is inserted into the power insertion hole (11), its end contacts the terminal contact surface portion (31b) and is electrically connected.

In addition, the plug connection portion 32 extends integrally from the terminal body 31 toward the other side in the longitudinal direction of the mounting space 12, and the power plugs P1 and P2 are selectively inserted and electrically connected. It is preferable that a hollow portion 34 is formed in the plug connection portion 32. That is, when the power plugs (P1, P2) are inserted into the hollow portion 34 and electrically connected to the plug connection portion 32, the power plugs (P1, P2) are connected to the plug connection portion 32 and the terminal. It can be electrically connected to the power supply side connection line (1a) via the body 31 and receive electricity.

At this time, the mounting opening 14 is formed through the other side of the mounting space 12 corresponding to the lower side of the hollow portion 34 of one of the pair of power terminal portions 30, and the mounting opening 14 It is preferable that the solenoid device 80 is coupled to.

Meanwhile, referring to FIGS. 3 and 4, the connection supports 20 are provided in at least one pair, and are preferably provided on one side of each mounting space 12 where the power insertion hole 11 is formed. In addition, the connection support part 20 preferably includes an elastic piece 27 and a puller 28.

In detail, the elastic piece 27 is preferably provided corresponding to each of the power insertion holes 11, and is located on both sides corresponding to the front-back direction of the housing portion 10 within one side of each mounting space 12. It is preferable that they are spaced apart and provided in pairs. And, when the power connection line 1a is introduced into the mounting space 12 through the power insertion hole 11, it is pressed toward the terminal contact surface portion 31b through the elastic piece 27.

Furthermore, referring to FIG. 4, the elastic piece 27 is bent multiple times so that the power supply side connection line 1a and the terminal contact surface portion 31b can be stably pressed and contacted. At this time, it is preferable that the distal end of the elastic piece 27 in contact with the power connection line 1a is bent upwardly in accordance with the insertion direction of the power connection line 1a. Therefore, even if the power connection line 1a is pulled outward, it can be prevented from being unnecessarily separated from the outlet 100 by being engaged with the distal end of the elastic piece 27.

At this time, this elastic piece 27 may be formed of a metal material having a certain elasticity, and may be manufactured using a stainless steel thin plate or the like. Through this, while providing a pressing force so that the power supply side connection line 1a is in contact with the terminal contact surface portion 31b and electrically connected, the puller 28, which will be described later, can be elastically deformed by the pressing force applied when operating the puller 28. You can.

In addition, the puller 28 is inserted through the puller insertion hole 11a formed between the pair of power insertion holes 11, and the power supply side connection line 1a is formed by the elasticity of the elastic piece 27. The elastic piece 27 is pressed so that its restraint state is selectively released.

That is, when the puller 28 is pressed toward the upper side of the mounting space 12 in order to separate the power side connection line 1a from the outlet 100, the elastic piece ( The distal end of 27) is elastically deformed to one side of the mounting space 12. Through this, the distal end of the elastic piece 27 can be separated from the power connection line 1a and the restraint state can be released.

At this time, when the external force pressing the puller 28 upward is released, the puller 28 is pressed downward by the elastic restoring force of the elastic piece 27, and the puller 28 automatically returns to the initial position. It can be. Accordingly, the distal end of the elastic piece 27 is adjacent to and contacts the power connection line 1a and is engaged and fixed, and the terminal contact surface portion 31b and the power connection line 1a can be stably contacted. And, when the power supply side connection line (1a) is in contact with the terminal contact surface portion (31b), it is electrically connected to the power terminal portion (30) and the power plugs (P1, P2) that selectively contact the power terminal portion (30). can be connected

Meanwhile, referring to FIG. 5, the solenoid device 80 is provided to be coupled to the mounting opening 14, and preferably includes a blocking case 81, a plunger 87, and a solenoid 89.

In detail, a storage space is formed inside the blocking case 81, and the plunger 87 is stored in the storage space. The storage space is provided with an elastic means (82) for elastically supporting the plunger (87) downward, and the elastic means (82) preferably has a radius outside the lower end of the solenoid (89) and the plunger (87), which will be described later. It is preferable that it is interposed between the stopping ends 87a extending in this direction.

At this time, the elastic restoring force of the elastic means 82 may be formed with a force smaller than the magnetomotive force of the solenoid 89. Therefore, the plunger 87 can be easily drawn toward the solenoid 89 during a power-off operation of the outlet 100, which will be described later, and when the magnetic force is removed, the plunger 87 is connected to the elastic means 82. It can be easily returned downward through its elastic resilience.

In addition, the blocking case 81, like the housing portion 10, is preferably made of an electrically insulating material such as synthetic resin. And, the mounting opening 14 is formed through a cross-sectional area corresponding to the cross-sectional area of the solenoid device 80.

Subsequently, the plunger 87 extends in the vertical direction below the hollow portion 34 and is provided to be lifted up and down in the storage space. At this time, it is elastically supported downward through the elastic means 82. In addition, the plunger 87 is preferably arranged so that the through hole 89c of the solenoid 89 is aligned concentrically with the hollow portion 34.

Next, the solenoid 89 is fixed to the upper end of the blocking case 81 and is provided to surround the upper outer periphery of the plunger 87. A first electrode (89a) and a second electrode (89b) are provided to protrude above the solenoid (89) and are spaced apart from each other. At this time, the second electrode (89b) is provided to contact the power terminal portion (30) disposed in the mounting space (12) on one side where the solenoid device (80) is coupled, and the first electrode (89a) is It is provided to contact the rotation switching unit 90 of the horizontal rotating temperature sensing blocking unit 40, which will be described later.

Next, the horizontal rotating temperature sensing blocking unit 40 is provided between the hollow part 34 and the through hole 89c, and includes the blocking cover 41, the rotation switching unit 90, and the connector connection unit ( 95), and preferably includes a bimetal (45).

Meanwhile, it is noted in advance that the connector connection portion 95 is provided with a first connector 96, a second connector 97, and an auxiliary connection line 98, and can be selectively contacted with the rotation switching portion 90. .

In detail, the blocking cover 41 covers the upper part of the solenoid device 80, and a through hole 42 communicating with the through hole 89c is formed in the center, and the through hole 89c and the through hole 42 are formed. ) is arranged concentrically so that the plunger 87 can be lifted up and down through the storage space to the hollow part 34, and is preferably formed in a circular shape of a preset size. In addition, the through hole 42 is preferably formed to protrude upward from the blocking cover 41 so that a rotation guide 42a to which the rotation switching unit 90 is rotatably coupled is formed on the outer edge.

In addition, a first electrode ground hole (43a) is formed on one upper side of the blocking cover (41) so that the rotation switching unit (90) comes into contact with the first electrode (89a) protruding through the upper part of the blocking cover (41). This is desirable. In addition, it is preferable that second electrode ground holes 43b, through which the second electrode 89b protrudes and contacts, are formed on the other upper side of the blocking cover 41 to be spaced apart. Additionally, the blocking cover 41, like the housing portion 10, is preferably made of an electrically insulating material such as synthetic resin.

Meanwhile, the solenoid device 80 and the horizontal rotating temperature sensing cut-off unit 40 are coupled to the mounting opening 14 formed through the other side of the mounting space 12 corresponding to the lower part of the hollow portion 34. It can be. In addition, at least one of the blocking case 81 included in the solenoid device 80 and the blocking cover 41 included in the horizontal rotating temperature sensing blocking unit 40 has an edge of the mounting opening 14. It may be formed in such a way that the coupling protrusion 49 protrudes to be coupled to the coupling means.

Next, as shown in FIGS. 8 to 10B, the rotation switching unit 90 is preferably provided with a circular body 91, a first connection piece 92, and a second connection piece 93.

In detail, the rotation switching unit 90 includes the circular body 91 rotatably coupled to the rotation guide 42a, the first electrode ground hole 43a of the blocking cover 41, and the first electrode ground hole 43a of the blocking cover 41. The first connection piece 92 is provided on one edge of the circular body 91 in the circumferential direction so that the first electrode 89a and the second electrode 89b, which are exposed through and in contact with the two-electrode ground hole 43b, are in contact with each other. and the second connection piece 93.

At this time, the circular body 91 is preferably formed of an electrically insulating material such as synthetic resin, and the first connection piece 92 and the second connection piece 93 are preferably formed of a current-conducting material such as a conductive metal such as brass. do. Here, a first coupling groove (92c) is recessed in the circular body 91 so that the first connecting piece 92 is coupled to it, and a second coupling groove (93c) is formed so that the second connecting piece 93 is coupled thereto. This formation is desirable.

At this time, the first coupling groove (92c) and the second coupling groove (93c) of the circular body 91, the first connecting piece 92, and the second connecting piece 93 are one embodiment of the present invention. Although it is indicated in the form according to, it is possible to form it in a modified form, and such modifications fall within the scope of the present invention.

In addition, the lower surface of the first connection piece 92 has a first lower surface portion 92b in contact with the first electrode 89a, and the upper surface of the first connection piece 92 has the first connector ( It is preferable that a first upper surface portion 92a that selectively contacts 96) is included. In addition, the second upper surface portion 93a of the second connection piece 93 corresponds to the maximum rotational displacement of the rotation switching unit 90 and is connected to the exclusive terminal portion 30 on one side, and the second lower surface portion ( 93b) is preferably energized at all times to the second electrode (89b).

In detail, the first lower surface portion (92b) is in contact with the first electrode (89a), and the first upper surface portion (92a) is connected to the power terminal portion (30) on the other side by the rotation of the rotation switching portion (90). Electrical conduction may occur by contacting the first connector 96 of the connector connection portion 95 connected to .

Meanwhile, the first upper surface portion 92a is preferably formed to have a rotational displacement area smaller than the maximum rotational displacement of the rotational switching unit 90 due to the rotational movement caused by thermal expansion of the bimetal 45, which will be described later. This is because the first connector 96 is in contact with the first upper surface portion 92a to conduct electricity when the rotational displacement of the rotation switching unit 90 is at its maximum, and when the rotational displacement is at its lowest, the circular body made of an electrically insulating material is connected to the first connector 96. It is to come into contact with (91).

Here, the first connector 96 is made of a conductive metal such as brass so that the power terminal 30 and the solenoid 89 are energized when the first connector 96 contacts the first connection piece 92. It is preferable that it is made of an electrically conductive material such as:

In addition, the second connector 97, which is connected to the power terminal 30 on the other side and connected to the first connector 96, is preferably made of a conductive material such as a conductive metal such as brass. And, the first connector 96 is connected to the first connection piece 92 by rotation of the rotation switching unit 90, and electrical current occurs.

At this time, the second connector 97 connected to the first connector 96 is preferably in contact with at least one of the pair of power terminals 30 (hereinafter referred to as the other power terminal 30).

In detail, the first connector 96 is in contact with the first connection piece 92 When selectively contacted with one power terminal of the pair of power terminals, the second connector 97 is brought into contact with the other power terminal.

This includes the power terminal portion on the other side, the second connector 97, the first connector 96, the first connection piece 92, the first electrode 89a, the second electrode 89b, and the second electrode 89b on one side. It is desirable to understand that electrical current is generated by connecting the power terminals in order.

At this time, an auxiliary connection line 98 may be further provided to electrically connect the second connector 97 and the first connector 96. That is, the second connector 97 and the first connector 96 can be connected through the auxiliary connection line 98.

In detail, the second connector 97 is provided to contact the other power terminal, and the second electrode 89b of the solenoid 89 is provided to contact the one power terminal. In addition, the first connector 96 is provided in contact with the upper side of the circular body 91, and is preferably selectively connected to the first connection piece 92 through the rotation operation.

Meanwhile, the above-described parts included in the horizontal rotating temperature sensing blocking unit 40 can be separated and reassembled. Therefore, through this structure, ease of assembly and reliability of assembly between parts assembled inside the horizontal rotating temperature sensing blocking unit 40 can be improved.

Subsequently, as shown in FIGS. 9 to 10B, the bimetal 45 is connected to the first electrode 89a on the upper surface of the blocking cover 41 when the ambient temperature of the housing portion 10 rises above the preset safe temperature. ) is preferably formed as a feature that rotates the rotation switching unit 90 so that the first connection piece 92 is energized.

At this time, the ambient temperature of the housing unit 10 is preferably understood as a concept encompassing the air temperature inside the housing unit 10 and the temperature of each component disposed within the housing unit 10. Here, the safe temperature can be set at 70 to 100°C, and most preferably at 80°C.

In addition, the blocking cover 41 preferably has a side wall protruding at the edge, and a restraining protrusion 44 for restraining the bimetal 45 is protruded on one edge. In detail, the bimetal 45 is coupled so that one end portion 45a is wrapped around the restraining protrusion 44 protruding upward on one side of an edge, and it is preferable that the outer surface of the bimetal 45 is supported in surface contact with the side wall. do.

In addition, the other end 45b of the bimetal 45 is preferably bent inward and the end is restrained by a locking step 94 formed on the outer periphery of the rotation switching unit 90.

In detail, the bimetal 45 is bent to rotate the rotation switching unit 90 restrained by the stopping step 94 when the surrounding temperature of the housing unit 10 rises above the preset safe temperature. The end portion 45b may be thermally expanded and deformed outward. Of course, it is preferable that the bimetal 45 restrained by the stopping step 94 has an accommodation space that continues to be in contact with the other end 45b even if it is thermally expanded and deformed.

At this time, the bimetal 45 is preferably formed with an outer surface having a higher thermal expansion coefficient than the inner surface so that the other end 45b can be thermally expanded and deformed outward. For example, the bimetal 45 may be provided by having a plate made of copper disposed on the outer surface of the other end portion 45b and a plate made of iron, which has a lower coefficient of thermal expansion than that of copper, disposed on the inner surface and bonded to each other. Of course, the above material can be replaced with another material as long as the magnitude relationship of the thermal expansion coefficient is satisfied.

Meanwhile, when the ambient temperature of the housing portion 10 is below the safe temperature, the bimetal 45 is maintained in its form before thermal expansion. Therefore, the first connector 96 does not conduct electricity to the first connection piece 92 and power is not applied to the solenoid 89.

At this time, the plunger 87 is elastically supported downward through the elastic means 82 interposed between the solenoid 89 and the stopping end 87a, so that the power plugs P1 and P2 are connected to the hollow portion ( 34) It is drawn into the inside and comes into contact with the power terminal portion (30). Through this, current flows through the power connection line 1a, the power terminal 30, and the power plugs P1 and P2.

Additionally, when the ambient temperature of the housing portion 10 rises above the safe temperature, the other end portion 45b of the bimetal 45 thermally expands outward. That is, as the bimetal 45 is thermally expanded and deformed outward, the rotation switching unit 90 fixed to the blocking cover 41 rotates clockwise relative to the upper surface of the horizontally rotating temperature sensing blocking unit 40. Also, the first connector 96 may be connected to the first connection piece 92 and conduct electricity to the first electrode 89a.

In detail, when the first connector 96 is energized with the first electrode (89a) through the first connection piece 92, the one power terminal portion 30, the second electrode 89b, and the first electrode are connected to each other. (89a), current flows through the first connection piece 92, the first connector 96, the second connector 97, and the other power terminal portion 30, thereby applying power to the solenoid device 80. do.

At this time, when power is applied to the solenoid device 80, magnetomotive force is generated and the plunger 87 is drawn into the solenoid 89 and rapidly moves upward. Accordingly, the upper end of the plunger 87 is drawn upward into the hollow part 34 and the power plugs P1 and P2 in contact with the hollow part 34 are pushed upward with strong force. Through this, the power plugs (P1, P2) are separated from the hollow portion 34, so the current can be automatically blocked.

That is, the present invention operates in the solenoid device 80 through thermal expansion and deformation of the horizontal rotating temperature sensing cut-off unit 40, and the power plugs P1 and P2 are separated from the hollow portion 34, thereby causing electrical damage. It operates to cut off the current as the connection state is released. At this time, when the plunger 87 moves upward, the elastic means 82 is compressed.

Here, when the power plugs (P1, P2) are separated from the hollow part 34 through the operation of the solenoid device 80, the body part PA of the power plug moves to the outside of the coupling fixing groove 53. It protrudes.

Therefore, the user can visually check the body portion (PA) of the power plug protruding to the outside of the outlet 100, immediately determine that the current is blocked, and then proceed with subsequent processing. Since the blocking state can be maintained, safety can be significantly improved. In addition, when the ambient temperature of the housing portion 10 is maintained above the safe temperature, the bimetal 45 of the horizontal rotating temperature sensing blocking portion 40 is maintained in a thermally expanded and deformed state.

Accordingly, since the energized state of the solenoid device 80 and the connection terminal portion 30 is maintained, the plunger 87 can be maintained in a state in which it is attracted by the magnetomotive force of the solenoid 89. Through this, even if the power plugs P1 and P2 are inserted into the hollow portion 34 due to the suction upward of the plunger 87, they can be removed again.

At this time, when the surrounding temperature of the housing unit 10 falls again below the safe temperature, the bimetal 45 is restored to its form before thermal expansion and deformation, and the rotation switching unit 90 rotates back to its previous state.

Accordingly, the first connector 96 leaves the first connection piece 92 of the rotation switching unit 90 and is connected to the circular body 91 made of an insulating material, thereby connecting the first connector 96 and the first connector 96 to each other. Current flow between the pair of power terminal units 30 connected through the 2 connector 97 is blocked. Accordingly, the magnetomotive force of the solenoid 89 is lost.

And, the plunger 87 is elastically supported downward through the elastic restoring force of the elastic means 82. Through this, when the power plugs (P1, P2) are reinserted into the hollow portion 34, the plug connection portion 32 and the power plugs (P1, P2) come into electrical contact again, causing current to flow.

Of course, when the surrounding temperature of the housing portion 10 is maintained above the safe temperature, the plug connection portion 32 and the power plugs P1 and P2 have a current flow due to the restart of the solenoid device 80. You may be blocked.

That is, when the ambient temperature of the housing part 10 rises above the safe temperature, the horizontal rotating temperature sensing blocking unit 40 connects the power plugs P1 and P2 through thermal expansion deformation of the bimetal 45. It is preferable to understand it as a device that operates to separate from the hollow portion 34 and blocks the flow of current.

In other words, it is preferable to understand that the function is not to block the current flow when a simple overcurrent occurs, but to block the current flow according to the increase in the ambient temperature of the housing portion 10.

Therefore, secondary safety accidents can be prevented by stably blocking the current flow of the product even when the ambient temperature of the housing part 10 increases due to external factors such as fire as well as heat generation due to the combination of parts.

Meanwhile, it is preferable that a communication portion 16a in which the auxiliary connection line 98 connecting the first connector 96 and the second connector 97 is received is formed recessed in the partition wall 16. Accordingly, the auxiliary connection line 98 is prevented from interfering with the grounding member 60, and thus operational reliability can be further improved.

At this time, terms such as “include,” “comprise,” “equip,” or “have,” as used above, mean that the corresponding component may be present, unless specifically stated to the contrary. Rather than excluding a component, it should be interpreted as allowing additional inclusion of other components. All terms, including technical or scientific terms, unless otherwise defined, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Commonly used terms, such as terms defined in a dictionary, should be interpreted as consistent with the contextual meaning of the related technology, and should not be interpreted in an idealized or overly formal sense unless explicitly defined in the present invention.

As explained above, the present invention is not limited to the above-described embodiments, and modifications and implementations can be made by those skilled in the art without departing from the scope of the claims of the present invention. And these modifications fall within the scope of the present invention.

1a: power supply connection line 10: housing part
12: Mounting space 14: Mounting opening
30: power terminal part 34: hollow part
40: Horizontal rotary temperature sensing block 80: Solenoid device
87: Plunger 89: Solenoid
89a: First electrode P1, P2: Power plug
100: Circular power transfer type plug safety separation outlet

Claims (5)

A housing portion formed by electrically dividing a pair of mounting spaces formed through a power insertion hole through which a power supply side connection line is inserted on a lower surface of one side in the longitudinal direction;
A terminal body provided on one side of the mounting space and electrically connected to the power connection line, and a plug connection portion extending from the terminal body toward the other side of the mounting space and forming a hollow portion into which a power plug is selectively inserted and electrically connected. A power terminal unit made of an electric current-conducting material and provided in pairs;
a connection supporter provided on one side of the mounting space in the longitudinal direction and providing a pressing force so that the power-side connection line is supported in contact with the terminal body;
A solenoid is provided in the center with a through hole communicating with the lower part of the hollow part, and has a first electrode exposed at the top and a second electrode in contact with the power terminal part, and is disposed at the bottom of the through hole to selectively supply power to the solenoid. A solenoid device including a plunger that is raised; and
Provided between the hollow portion and the through hole, When the ambient temperature of the housing part rises above the preset safe temperature, the first electrode is selectively moved by horizontal rotational thermal expansion deformation according to the rise in temperature to raise the plunger for releasing the power plug upward from the hollow part. It includes a horizontal rotating temperature sensing block that energizes,
The horizontal rotating temperature sensing and blocking unit
A rotation guider is formed upward on the edge of the through hole that covers the upper part of the solenoid device and communicates with the through hole in the center, A blocking cover made of an insulating material through which the first electrode and the second electrode are exposed,
A first connection piece made of a conductive material is rotatably coupled to the rotation guider and has a first lower surface portion that is electrically connected to the first electrode and a first upper surface portion that is selectively connected to a first connector for power application, and is formed on one side in the circumferential direction. A rotation switching unit coupled to the edge,
In order to selectively rotate the rotary switching unit by thermal expansion, one end is restrained to one side of the blocking cover and the other end includes a bimetal having a higher coefficient of thermal expansion on the outer surface than the inner surface that is in contact with the outer periphery of the rotary switching unit. A circular power transfer type plug safety disconnect outlet. delete According to claim 1,
The first upper surface portion is formed to have a rotational displacement area that is smaller than the maximum rotational displacement of the rotational switching unit due to thermal expansion of the bimetal,
A side wall is protruded at the edge of the blocking cover, and a restraining protrusion is protruded upward on one side of the corner,
One end of the bimetal is coupled to surround the restraining protrusion, the outer surface is supported in surface contact with the side wall, and the other end is bent inward and the end is restrained by a locking step formed on the outer periphery of the rotary switching unit. Switchable plug safety disconnect outlet. According to claim 1,
The rotation switching unit
A second upper surface portion having a rotational displacement area corresponding to the maximum rotational displacement of the rotational switching unit due to thermal expansion of the bimetal so as to be constantly connected to the power terminal portion for power application, and a lower surface portion that is constantly energized with the second electrode. A circular power transfer type plug safety disconnect outlet characterized by including two connection pieces. According to claim 1,
The solenoid device and the horizontal rotating temperature sensing cut-off unit are provided to be coupled to a mounting opening formed through the other side of the mounting space corresponding to the lower part of the hollow portion,
The solenoid device further includes a blocking case made of an insulating material, which is provided with elastic means for elastically supporting the plunger downward in a storage space formed therein, and to which the solenoid is fixed at the upper end,
The blocking cover covers the upper part of the blocking case, and the first electrode and the second electrode for supplying power to the solenoid device are installed through it.