CN211530342U - RCD and AFDD combined integrated wall socket - Google Patents

Abstract

The utility model belongs to the technical field of the socket technique and specifically relates to a combined integral type wall socket of RCD and AFDD, including face-piece, drain pan and PCBA module, the PCBA module is located face-piece and the drain pan that the lid closed, and PCBA module up end has a pair of wiring guide pillar, and the up end of PCBA module is including exposing outside the face-piece: reset button, AFDD Test button, and RCD Test button. The Reset key is used for closing the circuit system in the open circuit to realize conduction; and the AFDD Test key and the RCD Test key are used for detecting whether the AFDD and RCD functions of the socket are normal or not, and correspondingly controlling the SCR to enable the solenoid to pull the push-pull metal sheet to cut off the output power supply when the AFDD and RCD functions of the socket are pressed down. The utility model discloses, realize two kinds of protect function in limited space, detect electrical equipment when this wall socket inspection and have electric leakage and bad arc phenomenon, the PCBA module is as electronic part, and the electromagnetic means pulling mechanical part that control solenoid and iron core constitute is threaded off, thereby cuts off product power supply output and guarantees personal and property safety.

Description

RCD and AFDD combined integrated wall socket

Technical Field

The utility model relates to a socket technical field specifically is a combined integral type wall socket of RCD and AFDD.

Background

In the prior art, the RCD of the socket is residual current operated protection, i.e. earth leakage protection (device), and the AFDD of the socket is arc fault circuit breaker (device) protection. AFDD is generally an earth (arc) fault caused by a "series arc" or "parallel arc" short circuit or a damaged insulation of the electrical line to earth. At present, only an independent RCD wall socket or an independent AFDD wall socket exists in the market, the independent RCD wall socket or the independent AFDD wall socket can only protect the fault of one electrical equipment, and both the RCD and the AFDD cannot be protected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a combined integral type wall socket of RCD and AFDD to solve the problem that proposes among the above-mentioned background art. The RCD and AFDD combined integrated wall socket realizes two protection functions of the RCD and the AFDD in a limited space, when the wall socket detects that electric equipment has electric leakage and bad arc phenomena, the PCBA module serves as an electronic part, an electromagnetic device formed by a control solenoid and an iron core pulls a mechanical part to be tripped, and the power output of a product is cut off, so that the personal safety and the property safety are guaranteed.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a combined integral type wall socket of RCD and AFDD, includes face-piece, drain pan and PCBA module, the PCBA module is located face-piece and the drain pan that the lid closed, and PCBA module up end has a pair of wiring guide pillar, the up end of PCBA module is including exposing outside the face-piece:

the Reset key is provided with a key column I, the key column I penetrates through the lower end face of the PCBA module to be hooked and matched with an elastic device positioned on the lower end face, and the elastic device comprises a solenoid with an iron core and a rocker arm metal sheet arranged on the lower end face;

the AFDD Test key is provided with a key column II, and when the key column II is pressed down, the IC circuit detects the abnormal arc and controls the SCR to enable the solenoid to pull the iron core to enable the rocker arm metal sheet to be separated from the wiring guide column so as to cut off the output power supply;

RCD Test button, it has button post III, when this button post III was pressed, will promote the Test sheetmetal, short circuit PCBA module on TEST position, provide a leakage current for the mutual-inductor that is located PCBA module lower extreme face, the IC-circuit detects the leakage current and will control SCR drive solenoid and pass through the iron core pulling push-and-pull sheetmetal, Reset button unhook kick-backs to cut off output power.

Furthermore, the elastic device further comprises a control rocker arm, the tail end of the key column I is a hook body, and the control rocker arm mechanically drives a rocker arm metal sheet to move.

Furthermore, a spring I is sleeved on a key column I positioned on the upper end face of the PCBA module, the control rocker arm comprises a rocker arm capable of moving up and down along the rocker arm, an L-shaped push-pull metal sheet capable of moving horizontally along the rocker arm and provided with a reversed-letter-shaped groove is flatly inserted into the rocker arm, when the Reset key is pressed down, a hook body at the tail end of the key column I penetrates through the push-pull metal sheet to the reversed-letter-shaped groove, after external force is removed, the key column I rebounds, and the hook body hooks the push-pull metal sheet to enable the rocker arm to drive the rocker arm metal sheet to rebound until the rocker arm metal sheet is in contact conduction with the wiring guide post.

Furthermore, a reset spring is arranged between the strip-shaped groove at one end of the push-pull metal sheet and the rocker arm, and the other end of the push-pull metal sheet is clamped on the iron core through a vertical strip-shaped groove.

Further, the rocking arm sheetmetal has two sets ofly, and the symmetry is installed at the both ends of rocking arm, and this rocking arm sheetmetal is that the front end has contact and slope and sets up downwards, and the rocking arm sheetmetal is close to the tail end and fixes the lower terminal surface at the PCBA module, and the tail end has vertical downwardly extending's wiring portion.

Furthermore, a key frame in threaded connection with the face shell is installed below the RCD Test key, a Test metal sheet located in the key frame is arranged at the bottom of the key column III, a spring III is arranged between the key column III located on the Test metal sheet and the key frame, and a spring II used for resetting the AFDD Test key is also sleeved on the key column II.

Further, the solenoid is wrapped with a metal frame.

Furthermore, a socket switch is further arranged on the face shell, and an input interface is further arranged on the bottom shell.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, realize two kinds of protect function of RCD and AFDD in limited space, detect electrical equipment when this wall socket inspection and have electric leakage and bad arc phenomenon, PCBA module 3 is as the electron part, and the electromagnetic means pulling mechanical part dropout that control solenoid and iron core constitute cuts off thereby product power supply output guarantees the person and property safety.

To the trouble found by present electrical apparatus, the utility model discloses a following measure is taken to the wall socket:

when electric arcs (including serial arcs and parallel arcs) generated by electric appliances or electric wires are detected by the product mutual inductor, the product can automatically disconnect an output power supply after the electronic part judges that the arc is broken, and therefore the safety of rear-end people and equipment is protected.

When the wall socket detects that the electrical equipment has an electric leakage phenomenon, the product cuts off the power supply when the electric leakage exceeds the set rated leakage current, thereby ensuring the personal and property safety.

Drawings

Fig. 1 is a schematic view of the explosion structure of the present invention.

Fig. 2 is an assembly diagram of the present invention.

Fig. 3 is a schematic bottom view of fig. 2 according to the present invention.

Fig. 4 is a schematic view of the present invention with the front shell and the bottom shell removed.

Fig. 5 is another view of fig. 4 according to the present invention (at this time, the contact is in contact with the connection guide pillar).

Fig. 6 is a schematic bottom view of fig. 4 according to the present invention.

Fig. 7 is a schematic sectional view taken along line a-a of fig. 4 according to the present invention.

Fig. 8 is a schematic view showing that the push-pull metal sheet is hooked by the hook body of fig. 4 and the Reset button is rebounded and returned.

Fig. 9 is a schematic diagram of a portion of the components of fig. 4 according to the present invention.

Fig. 10 is a schematic cross-sectional view taken along line B-B of fig. 9 according to the present invention.

Fig. 11 is a schematic diagram of a portion of the components of fig. 9 according to the present invention.

Fig. 12 is a schematic bottom view of fig. 11 according to the present invention.

Fig. 13 is a schematic cross-sectional view taken at C-C of fig. 11 according to the present invention.

In the figure: 1-surface shell, 2-bottom shell, 3-PCBA module, 4-Reset button, 5-AFDD Test button, 6-RCD Test button, 7-mutual inductor, 8-key column I, 9-hook, 10-rocker arm, 11-spring I, 12-push-pull metal sheet, 13-Reset spring, 14-solenoid, 15-metal frame, 16-iron core, 17-rocker arm metal sheet, 18-contact, 19-control rocker arm, 20-key frame, 21-Test metal sheet, 22-spring III, 23-wiring guide column, 24-rivet, 25-socket switch, 26-shutter and its catapult, 27-lead connecting column, 28-socket clamping sheet, 29-M3.5x25 screw, 30-input interface, 31-grounding connecting piece, 32-screw, 33-key column III, 34-key column II, 35-spring II, 36-wiring part.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper/lower end", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed/sleeved," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-13, the present invention provides a technical solution:

the utility model provides a combined integral type wall socket of RCD and AFDD, includes face-piece 1, drain pan 2 and PCBA module 3, PCBA module 3 is located face-piece 1 and the drain pan 2 that the lid closed, and PCBA module 3 upper end has a pair of wiring guide pillar 23, PCBA module 3's upper end includes exposes to the face-piece 1 outside:

the Reset key 4 is provided with a key column I8, the key column I8 penetrates through the lower end face of the PCBA module 3 to be in hooked fit with an elastic device positioned on the lower end face, wherein the elastic device comprises a solenoid 14 with an iron core 16 and a rocker arm metal sheet 17 arranged on the lower end face, and the solenoid 14 is wrapped with a metal frame 15;

the AFDD Test key 5 is provided with a key column II 34, and when the key column II 34 is pressed down, the IC circuit detects the abnormal arc and controls the SCR to enable the solenoid 14 to pull the iron core 16 to enable the rocker arm metal sheet 17 to be separated from the wiring guide column 23 so as to cut off the output power supply;

and the RCD Test key 6 is provided with a key column III 33, when the key column III 33 is pressed, the Test metal sheet 21 is pushed to short circuit the TEST position on the PCBA module 3, a leakage current is provided for the mutual inductor 7 positioned on the lower end face of the PCBA module 3, the IC circuit detects the leakage current to control the SCR driving solenoid 14 to pull the push-pull metal sheet 12 through the iron core 16, and the Reset key 4 is unhooked and rebounded to cut off the output power supply.

The elastic device further comprises a control rocker arm 19, the tail end of the key column I8 is provided with a hook body 9, and the control rocker arm 19 mechanically drives the rocker arm metal sheet 17 to move.

The spring I11 is sleeved on a key column I8 positioned on the upper end face of the PCBA module 3, the control rocker arm 19 comprises a rocker arm 10 capable of moving up and down along the rocker arm, an L-shaped push-pull metal sheet 12 which can move horizontally along the rocker arm 10 and is provided with a reversed-letter-shaped groove is flatly inserted in the rocker arm 10, when the Reset key 4 is pressed down, a hook body 9 at the tail end of the key column I8 penetrates through the push-pull metal sheet 12 to the reversed-letter-shaped groove, after external force is removed, the key column I8 rebounds, and the hook body 9 hooks the push-pull metal sheet 12 to enable the rocker arm 10 to drive the rocker arm metal sheet 17 to rebound until the rocker arm metal sheet 17 is in contact conduction with the wiring guide post.

A return spring 13 is arranged between the strip-shaped groove at one end of the push-pull metal sheet 12 and the rocker arm 10, and the other end of the push-pull metal sheet 12 is clamped on the iron core 16 through a vertical strip-shaped groove.

The rocking arm sheetmetal 17 has two sets, and the symmetry is installed at the both ends of rocking arm 10, and this rocking arm sheetmetal 17 is that the front end has contact 18 and slope and sets up downwards, and rocking arm sheetmetal 17 is close to the tail end and fixes the lower terminal surface at PCBA module 3, and the tail end has vertical downwardly extending's wiring portion 36.

As shown in fig. 1 to 3, the front case 1 is further provided with a socket switch 25 and a plug interface, the plug interface has a socket clip 28 therein, and the bottom case 2 is further provided with an input interface 30.

Be located the button frame 20 with 1 spiro union of face-piece is installed to the below of RCDTest button 6, the bottom of button post III 33 has the Test sheetmetal 21 that is located button frame 20, has spring III 22 between button post III 33 and the button frame 20 that are located on the Test sheetmetal 21, also the cover is equipped with spring II 35 that is used for AFDD Test button 5 to reset on the button post II 34.

The utility model discloses when using, as shown in fig. 1, in input interface 30 was installed to wire connector 27, wire connector 27 was connected with two wiring guide pillars 23 through the wire, then was connected with socket clip connection piece 28 through the wire with the wiring portion 36 of the rocking arm sheetmetal 17 afterbody in fig. 8, can make the plug insert the plug interface so that be used for rated voltage's output like this.

Firstly, the live wire and the zero wire of the commercial power are correspondingly connected to the live wire and the zero wire connection positions in the input interface 30 and are respectively connected with the wire connection post 27. As shown in fig. 5, 7 and 9-13, when the Reset key 4 is pressed, the key post i 8 of the Reset key 4 moves downward, the hook 9 at the bottom of the key post i 8 penetrates through the push-pull metal sheet 12 into the rectangular groove, then the hand is released to stop pressing the Reset key 4, the Reset key 4 and the key post i 8 rebound and Reset under the action of the spring i 11, the push-pull metal sheet 12 (leftward as shown in fig. 9-10) returns due to the interaction between the Reset spring 13 on the push-pull metal sheet 12 and the rocker arm 10, at this time, the metal sheet a (as shown in fig. 8) in the middle of the push-pull metal sheet 12 enters the groove of the hook 9, so that the push-pull metal sheet 12 can be lifted vertically upward, the rocker arm 10 is lifted vertically upward, at this time, the rocker arm metal sheets 17 at both ends of the rocker arm 10 are lifted together until the contact 18 at the front end of the rocker arm metal sheet 17 contacts the terminal post 23 to achieve conduction, since the terminal pins 23 are connected to the socket clip tabs 28 by wires, an external plug is inserted into the plug interface and is connected to the socket clip tabs 28 in contact therewith, so as to be used for rated voltage output.

The utility model discloses in, as shown in fig. 10, initial state sheet metal body an initial condition and coupler body 9 are misplaced slightly under vertical state, press downwards at coupler body 9 and insert the in-process in 12 inslots of push-and-pull sheetmetal, the inclined plane of coupler body 9 enters into in the corresponding cell body in the rectangular groove that push-and-pull sheetmetal 12 was seted up, push-and-pull sheetmetal 12 received earlier that coupler body 9 male influence moved right earlier this moment, treat that coupler body 9 inserts completely in the corresponding cell body in rectangular groove, under reset spring 13 effect, push-and-pull sheetmetal 12 return left.

The utility model discloses, as shown in FIG. 7, under the initial condition, Reset button 4, AFDD Test button 5 and RCDTest button 6 have not all been pressed, and the system circuit is in the state of opening a way. When the RCD and AFDD functions of the socket need to be detected, firstly, the mains supply is connected through the input interface 30, then the Reset key 4 is pressed, as shown in fig. 9, at this time, the key post i 8 of the Reset key 4 moves downward, the hook 9 at the bottom of the key post i 8 penetrates through the push-pull metal sheet 12 to the left of the rectangular groove, then the Reset key 4 is released, the Reset key 4 and the key post i 8 rebound and Reset under the action of the spring i 11, due to the interaction between the Reset spring 13 on the push-pull metal sheet 12 and the rocker arm 10, the push-pull metal sheet 12 (leftward as shown in fig. 9-10) is Reset, at this time, the metal sheet a (as shown in fig. 8) in the middle of the push-pull metal sheet 12 enters the groove of the hook 9, so that the push-pull metal sheet 12 can be lifted vertically upward, the rocker arm 10 is lifted vertically upward, and at this time, the rocker arm metal sheets 17 at both ends of the rocker arm 10 are lifted together until the contact 18 at the front end of the rocker arm metal sheet 17 and the 23 contact is made conductive and the system circuit is in the on state.

When the RCD and AFDD functions of the socket need to be tested: if the RCD function is tested firstly, when the RCD Test key 6 is pressed, a circuit provides a leakage current for the mutual inductor 7, the IC circuit of the PCBA module 3 detects the leakage current, the SCR (silicon controlled rectifier) driving solenoid 14 is controlled to pull the push-pull metal sheet 12 through the iron core 16, the hook body 9 of the Reset key 4 is unhooked from the metal sheet body a of the push-pull metal sheet 12, the springback is realized under the action of the spring I11, and the contact 18 at the front end of the rocker arm metal sheet 17 is separated from the wiring guide post 23 to cut off the output power supply. When the socket is used, the electric leakage phenomenon of the electric equipment is detected, and when the electric leakage exceeds the set rated leakage current, the product cuts off the power supply, thereby ensuring the personal and property safety.

Similarly, after the RCD is tested to be normal, the Reset button 4 is pressed and released, the system circuit is in a power-on state again, the AFDD Test button 5 is pressed, the IC circuit is abnormal in electric arc and controls the SCR, the solenoid 14 pulls the push-pull metal sheet 12 to be unhooked from the hook body 9 through the iron core 16, and the contact 18 at the front end of the rocker arm metal sheet 17 is separated from the wiring guide post 23 to cut off the output power supply. When the socket is used, when electric arcs (including serial arcs and parallel arcs) generated by electric appliances or electric wires are detected by the product mutual inductor 7, the product can automatically cut off an output power supply after judging that the arcs are broken, and therefore the safety of rear-end people and equipment is protected.

In the present invention, the functions of the main components are as follows:

reset key 4 and key post i 8: the rising and falling operations close the open circuit system to achieve conduction. Rocker arm metal piece 17: by rocking the control rocker 10, the position of the contact 18 on the rocker 10 is controlled. The control rocker arm 19: the position of the rocker arm metal (spring) piece 17 is controlled by the rocking action. Push-pull sheet metal 12: the position of the rocker arm metal (spring) sheet 17 is controlled by different positions. RCD Test key 6: by pressing, the Test tab 21 is pushed, shorting the Test bit on the PCBA module, providing a leakage current to the transformer 7. Test metal piece 21: shorting the TEST bit on the PCBA module. Spring I11: mechanical hooks that provide spring force to Reset key 4: the hook 9 is locked to the push-pull metal sheet 12. The return spring 13: providing elastic force to reset the push-pull metal sheet. The metal frame 15: a conductor that is magnetically coupled. Solenoid 14: and a device which is matched with the metal frame 15 and generates a magnetic field by utilizing the current to pass through the conducting wire. AFDD Test Key 5: when pressed, the IC detects an arc abnormality and controls the SCR so that the solenoid 14 cuts off the output power by pulling the push-pull metal piece 12 through the iron core 16.

The utility model discloses, other parts are prior art, as shown in fig. 1-3, still include: the screw 32 is used for fixing the face shell 1 and the bottom shell 2 to realize the covering of the face shell and the bottom shell; the shutter and its slingshot 26 are fitted with the socket switch 25 (the socket switch 25 is a rocker switch), by pressing the socket switch 25 to one end, the circuit is switched on, and to the other end, the circuit is switched off; a M3.5x25 screw 29 is used to secure the wire stud 27 into the input interface 30; rivet 24 is used to mount grounding tab 31 to the bottom of the bottom shell and serves to secure the receptacle.

The utility model discloses, realize two kinds of protect function of RCD and AFDD in limited space, detect electrical equipment when this wall socket inspection and have electric leakage and bad arc phenomenon, PCBA module 3 is as the electron part, and the electromagnetic means pulling mechanical part that control solenoid 14 and iron core 16 constitute is threaded off, thereby cuts off product power supply output and guarantees the personal and property safety.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a combined integral type wall socket of RCD and AFDD, includes face-piece (1), drain pan (2) and PCBA module (3), PCBA module (3) are located face-piece (1) and drain pan (2) that the lid closed, and PCBA module (3) up end has a pair of wiring guide pillar (23), its characterized in that, the up end of PCBA module (3) is including exposing outside face-piece (1):

the Reset key (4) is provided with a key column I (8), the key column I (8) penetrates through the lower end face of the PCBA module (3) to be hooked and matched with an elastic device positioned on the lower end face, and the elastic device comprises a solenoid (14) with an iron core (16) and a rocker arm metal sheet (17) mounted on the lower end face;

an AFDD Test key (5) having a key post II (34), wherein when the key post II (34) is pressed, the IC circuit detects an arc abnormality and controls the SCR to cause the solenoid (14) to pull the iron core (16) to separate the rocker arm metal sheet (17) from the connection guide post (23) so as to cut off the output power supply;

RCD Test button (6), it has button post III (33), when this button post III (33) is pressed, will promote Test sheetmetal (21), short circuit PCBA module (3) on the TEST position, provide a leakage current for mutual-inductor (7) that are located PCBA module (3) lower extreme face, the IC-circuit detects the leakage current and will control SCR drive solenoid (14) and pull push-and-pull sheetmetal (12) through iron core (16), Reset button (4) unhook kick-backs, in order to cut off output power.

2. An RCD and AFDD combined type integral wall socket as claimed in claim 1, wherein: the elastic device further comprises a control rocker arm (19), the tail end of the key column I (8) is provided with a hook body (9), and the control rocker arm (19) mechanically drives a rocker arm metal sheet (17) to move.

3. An RCD and AFDD combined type integral wall socket as claimed in claim 2, wherein: a spring I (11) is sleeved on a key column I (8) positioned on the upper end face of the PCBA module (3), the control rocker arm (19) comprises a rocker arm (10) capable of moving up and down, an L-shaped push-pull metal sheet (12) which can move horizontally along the rocker arm (10) and is provided with a herringbone groove is flatly inserted into the rocker arm (10), when the Reset key (4) is pressed down, a hook body (9) at the tail end of the key column I (8) penetrates through the push-pull metal sheet (12) to the inside of the herringbone groove, after external force is removed, the key column I (8) rebounds, and the hook body (9) hooks the push-pull metal sheet (12) to enable the rocker arm (10) to drive the rocker arm metal sheet (17) to rebound until the rocker arm metal sheet (17) is in contact conduction with the wiring guide post (23).

4. A RCD and AFDD combined type integral wall socket as claimed in claim 3, wherein: and a return spring (13) is arranged between the strip-shaped groove at one end of the push-pull metal sheet (12) and the rocker arm (10), and the other end of the push-pull metal sheet (12) is clamped on the iron core (16) through a vertical strip-shaped groove.

5. An RCD and AFDD combination type one-piece wall outlet as set forth in any one of claims 1-4, wherein: rocker arm sheetmetal (17) have two sets ofly, and the symmetry is installed at the both ends of rocking arm (10), and this rocker arm sheetmetal (17) are the front end and have contact (18) and slope and set up downwards, and rocker arm sheetmetal (17) are close to the tail end and fix the lower terminal surface at PCBA module (3), and the tail end has vertical downwardly extending's wiring portion (36).

6. An RCD and AFDD combined type integral wall socket as claimed in claim 1, wherein: the key frame (20) which is connected with the face shell (1) in a screwed mode is installed below the RCD Test key (6), a Test metal sheet (21) which is located in the key frame (20) is arranged at the bottom of the key column III (33), a spring III (22) is arranged between the key column III (33) which is located on the Test metal sheet (21) and the key frame (20), and a spring II (35) which is used for resetting the AFDD Test key (5) is also sleeved on the key column II (34).

7. An RCD and AFDD combined type integral wall socket as claimed in claim 1, wherein: the solenoid (14) is wrapped with a metal frame (15).

8. An RCD and AFDD combined type integral wall socket as claimed in claim 1, wherein: the face shell (1) is further provided with a socket switch (25), and the bottom shell (2) is further provided with an input interface (30).

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