CN213184837U - Socket with leakage protection function - Google Patents

Abstract

The utility model discloses a take electric leakage protection function's socket, including base and closing cap base open-ended apron, be equipped with movable contact spring, supply the binding post that external power line electricity is connected, the circuit board of being connected with the binding post electricity and drive movable contact spring contact or break away from binding post's on the base, the circuit board electricity is connected with the drive mechanism who is used for locking or unblock switching mechanism, movable contact spring electricity is connected with the plug bush, set up the apron jack that participates in and insert the plug bush that supplies the plug on the apron, still the electricity is connected with the mutual-inductor that detects whether electric leakage of socket on the circuit board. The utility model discloses integrated earth leakage protection function on the socket, the automatic power-on and the outage of socket are realized through on-off mechanism and drive mechanism, simple structure, and convenient operation plays fine earth leakage protection to electrical apparatus, and the practicality is strong.

Description

Socket with leakage protection function

[ technical field ]

The utility model relates to a take earth-leakage protection function's socket.

[ background art ]

The leakage protection plug has wide application, can be used for leakage protection of various electrical equipment, has high safety performance, and can avoid damage to the electrical equipment and reduce safety accidents. However, the leakage protection plug is expensive in manufacturing cost and is not suitable for all the electric appliance plugs to be made into the leakage protection plugs. The leakage protection plug is generally large in size, occupies a whole socket when in use, and greatly hinders the use of other electrical appliances. And some electrical appliances which are already used are inconvenient to replace common plugs with leakage protection plugs, but the electrical appliances also need the leakage protection function.

The utility model discloses it is based on above problem produces.

[ contents of utility model ]

The utility model aims at prior art not enough, provide a take socket of earth leakage protection function, the utility model discloses simple structure, convenient operation with the integration of earth leakage protection function on the socket, can provide earth leakage protection to the user and the electrical apparatus that uses at its leading-out terminal, the practicality is strong.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a take socket of earth leakage protection function, is including base and closing cap base open-ended apron, be equipped with movable contact spring, the binding post that supplies the external power line electricity to be connected on the base, the circuit board of being connected with the binding post electricity and drive movable contact spring contact or break away from binding post's on-off mechanism, the circuit board electricity is connected with the drive mechanism who is used for locking or unblock on-off mechanism, the movable contact spring electricity is connected with the plug bush, set up the apron jack that participates in and inserts the plug bush that supplies the plug on the apron, still the electricity is connected with the mutual-inductor that detects whether electric leakage.

The utility model provides a take electric leakage protection function's socket, be equipped with the inner shell on the circuit board, the guide way has been seted up to the inner shell, switching mechanism reciprocates so that make the reed contact or break away from binding post's removal seat including following the guide way, vertical first jack has been seted up to the removal seat, switching mechanism is still including passing the circuit board and inserting the reset key of first jack and the elastic component that the drive reset key upwards resets and removes, drive mechanism is including locking device, locking device is connected with its drive and inserts the removal seat and in order to remove the drive arrangement of seat with the unblock reset key with the partial removal of inserting the reset key locking on removing the seat.

The socket with the leakage protection function is characterized in that the movable seat is provided with a transverse second jack, the locking device comprises a lock catch, one end of the lock catch is inserted into the second jack and is connected with the reset key in a clamped mode, the other end of the lock catch is connected with the output end of the driving device in a clamped mode, and the reset key is provided with a bayonet in which one end of the lock catch can be clamped.

The socket with the leakage protection function comprises a key cap and a plug rod, wherein the key cap is located above a circuit board, the plug rod is connected with the key cap and is inserted into a first jack, the bayonet is arranged on one side, facing the lock catch, of the plug rod, the elastic piece is a reset spring sleeved on the plug rod, and the elastic piece is pressed between the key cap and the circuit board.

The socket with the leakage protection function is characterized in that one end of the lock catch is provided with a transverse clamping portion clamped with the reset key, the other end of the lock catch is provided with a vertical clamping portion clamped with the output end of the driving device, the transverse clamping portion is provided with a transverse guide port for the lock catch to move left and right relative to the reset key, and the vertical clamping portion is provided with a vertical guide port for the output end of the lock catch to move up and down relative to the driving device.

According to the socket with the electric leakage protection function, the driving device is the electromagnet assembly electrically connected with the circuit board, and the armature of the electromagnet assembly is connected with the vertical clamping portion in a clamping mode.

The socket with the leakage protection function comprises an L-pole movable spring and an N-pole movable spring which are fixedly arranged on two sides of an inner shell, movable contacts are arranged at elastic free ends of the L-pole movable spring and the N-pole movable spring and press a movable seat downwards, the wiring terminal comprises an L-pole wiring terminal and an N-pole wiring terminal, and a static contact electrically connected with the L-pole wiring terminal and the N-pole wiring terminal is arranged on the circuit board.

The socket with the leakage protection function comprises an L pole plug bush and an N pole plug bush which are respectively electrically connected with an L pole movable spring and an N pole movable spring, wherein the L pole movable spring and the N pole movable spring respectively pass through a mutual inductor with a lead between the L pole plug bush and the N pole plug bush, the L pole movable spring and the N pole movable spring are provided with limiting columns, and a limiting opening for the limiting columns to be inserted so as to limit excessive deformation of the L pole movable spring and the N pole movable spring is formed in a circuit board.

The socket with the leakage protection function comprises an E-pole wiring terminal, the plug bush comprises an E-pole plug bush electrically connected with the E-pole wiring terminal, an E-pole containing groove used for containing the E-pole wiring terminal and an E-pole plug bush seat used for sealing an upper end opening of the E-pole containing groove so as to fix the E-pole wiring terminal in the E-pole containing groove are formed in the base, an E-pole plug bush chamber used for containing the E-pole plug bush is formed in the E-pole plug bush seat, a pin of the E-pole plug bush penetrates through the E-pole plug bush seat and penetrates into the E-pole containing groove, a first pressing plate pressing the E-pole plug bush, the E-pole plug bush seat and the E-pole wiring terminal together is clamped on the base, and an E-pole jack located above the E-pole plug bush seat is formed in the first pressing plate.

According to the socket with the leakage protection function, the L-pole plug bush and the N-pole plug bush are fixedly arranged between the first pressing plate and the base, and the first pressing plate is provided with the L-pole jack and the N-pole jack which are positioned above the L-pole plug bush and the N-pole plug bush.

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

1. the utility model discloses integrated earth leakage protection function on the socket, the automatic power-on and the outage of socket are realized through on-off mechanism and drive mechanism, simple structure, and convenient operation plays fine earth leakage protection to electrical apparatus, and the practicality is strong.

2. The utility model discloses an each part passes through joint mode joint on the base, very big simplification the installation procedure of socket when production, great improvement production efficiency to the off-the-shelf qualification rate is high.

[ description of the drawings ]

Fig. 1 is a perspective view of the present invention;

FIG. 2 is an exploded view of FIG. 1;

fig. 3 is one of exploded views of the internal structure of the present invention;

fig. 4 is a second exploded view of the internal structure of the present invention.

[ detailed description of the invention ]

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

As shown in fig. 1 to 4, a socket with a leakage protection function includes a base 10 and a cover plate 11 covering an opening of the base 10, a movable contact spring 2 is disposed on the base 10, a connection terminal 3 for electrically connecting an external power line, a circuit board 7 electrically connected to the connection terminal 3 and a switch mechanism for driving the movable contact spring 2 to contact with or separate from the connection terminal 3, the circuit board 7 is electrically connected to a transmission mechanism for locking or unlocking the switch mechanism, the movable contact spring 2 is electrically connected to a plug bush 4, a cover plate jack 12 for inserting a pin of a plug into the plug bush 4 is disposed on the cover plate 11, and a mutual inductor 70 for detecting whether the socket leaks electricity is further electrically connected to the circuit board 7.

The utility model discloses before the switch on, movable contact spring 2 and binding post 3 are in off-state, and plug bush 4 is uncharged, plays the guard action to electrical apparatus, the utility model discloses behind the switch on, need the manual on-off mechanism of pressing down of user, on-off mechanism drive movable contact spring 2 contacts binding post 3 to on-off mechanism is pressed down the back and is locked so that movable contact spring 2 keeps on-state with binding post 3 by drive mechanism, and plug bush 4 switch on, thereby makes the utility model discloses on get the power switch on of electrical apparatus of electricity. When electric leakage occurs at one end of the electric appliance, the mutual inductor 70 transmits a detected electric leakage signal to the circuit board 7, the circuit board 7 sends a control signal to the transmission mechanism, the transmission mechanism unlocks the switch mechanism, the switch mechanism resets to enable the movable reed 2 to be separated from the wiring terminal 3, and the plug bush 4 cuts off the power supply, so that the electric leakage protection effect is achieved for a user or the electric appliance. After the user eliminates the leakage factor, the user can manually press the switch mechanism once again to switch on the power supply of the electric appliance. The utility model discloses simple structure, convenient operation plays fine earth-leakage protection effect to electrical apparatus, and the practicality is strong.

Be equipped with the inner shell 8 on the circuit board 7, the guide way 80 has been seted up to the inner shell 8, switching mechanism is including can following guide way 80 and reciprocating so that make movable reed 2 contact or break away from the removal seat 50 of binding post 3, remove the seat 50 and seted up vertical first jack 500, switching mechanism is still including passing circuit board 7 and inserting reset key 51 and the elastic component 52 of drive reset key 51 upwards resetting-movement of first jack 500, drive mechanism is including locking device 60, locking device 60 is connected with its drive and inserts removal seat 50 in order to fix reset key 51 on removing seat 50 or partly take out from removal seat 50 with the drive arrangement 61 of unblock reset key 51.

The driving device 61 drives the locking device 60 to be inserted into the first jack 500 under normal conditions, after the reset key 51 is pressed, the locking device 60 locks the reset key 51 and the movable seat 50 together, the reset key 51 and the movable seat 50 are pressed and moved upwards together under the action of the elastic force of the elastic piece 52, the movable seat 50 moves upwards along the guide groove 80 and presses the elastic free end of the movable spring piece 2 against the connecting terminal 3, and therefore the power supply of the plug bush 4 is switched on. When electricity leakage occurs, the driving device 61 drives the locking device 60 to partially draw away from the movable seat 50 to unlock the reset key 51, the movable seat 50 moves downwards to reset under the pressing of the elastic free end of the movable spring piece 2, and the movable spring piece 2 is separated from the connecting terminal 3, so that the power supply of the plug bush 4 is disconnected.

The movable seat 50 is provided with a transverse second jack 501, the locking device 60 includes a latch 600 having one end inserted into the second jack 501 and connected to the reset key 51, and the other end connected to the output end of the driving device 61, and the reset key 51 is provided with a bayonet 510 for allowing one end of the latch 600 to be inserted into.

When the reset key 51 is pressed, the latch 600 is latched into the latch 510, so that the reset key 51 can be locked on the movable base 50. When the driving device 61 drives the lock catch 600 to move leftward, the lock catch 600 is disengaged from the bayonet 510, i.e., the reset key 51 can be unlocked, the reset key 51 is partially withdrawn from the movable base 50 when moving upward, and the movable base 50 moves downward when returning downward.

The reset key 51 includes a key cap 511 located above the circuit board 7 and a plug rod 512 connected to the key cap 511 and inserted into the first insertion hole 500, the bayonet 510 is opened on one side of the plug rod 512 facing the latch 600, the elastic element 52 is a reset spring sleeved on the plug rod 512, and the elastic element 52 is pressed between the key cap 511 and the circuit board 7.

One end of the lock catch 600 is provided with a transverse clamping portion 601 clamped with the reset key 51, the other end of the lock catch 600 is provided with a vertical clamping portion 602 clamped with the output end of the driving device 61, the transverse clamping portion 601 is provided with a transverse guide port 603 for the lock catch 600 to move left and right relative to the reset key 51, and the vertical clamping portion 602 is provided with a vertical guide port 604 for the lock catch 600 to move up and down relative to the output end of the driving device 61.

Through setting up horizontal guiding opening 603 to hasp 600 can remove about inserted bar 512 relatively under drive arrangement 61's drive, avoids the dropout, through setting up vertical guiding opening 604, keeps when hasp 600 reciprocates along with removing seat 50 with drive arrangement 61's output joint, avoids the dropout, thereby makes hasp 600 homoenergetic keep with drive arrangement 61's output and inserted bar 512 joint when reciprocating and removing about.

The driving device 61 is an electromagnet assembly electrically connected with the circuit board 7, and an armature of the electromagnet assembly is clamped with the vertical clamping portion 602.

The movable spring piece 2 comprises an L pole movable spring piece 21 and an N pole movable spring piece 22 which are fixedly arranged on two sides of the inner shell 8, the elastic free ends of the L pole movable spring piece 21 and the N pole movable spring piece 22 are respectively provided with a movable contact 24 and press the movable seat 50 downwards, the wiring terminal 3 comprises an L pole wiring terminal 31 and an N pole wiring terminal 32, and the circuit board 7 is provided with two static contacts 34 which are respectively electrically connected with the L pole wiring terminal 31 and the N pole wiring terminal 32.

When the moving seat 50 moves upwards, the moving contact 24 is pressed to contact the fixed contact 34, so that the L-pole and N-pole moving reeds 21 and 22 are correspondingly and electrically connected with the L-pole and N- pole wiring terminals 31 and 32, and the electric contact effect is better. The elastic free ends of the movable springs 21 and 22 of the L pole and the N pole face downwards, and the movable seat 50 is unlocked and then is reset and moved downwards under the action of the elastic force of the movable springs 21 and 22 of the L pole and the N pole.

The plug bush 4 comprises an L pole plug bush 41 and an N pole plug bush 42 which are respectively electrically connected with the L pole movable spring 21 and the N pole movable spring 22, leads between the L pole movable spring 21 and the N pole movable spring 22 and between the L pole plug bush 41 and the N pole plug bush 42 pass through the mutual inductor 70, limiting columns 25 are respectively arranged on the L pole movable spring 21 and the N pole movable spring 22, and limiting openings 71 for the limiting columns 25 to be inserted to limit excessive deformation of the L pole movable spring 21 and the N pole movable spring 22 are formed in the circuit board 7.

The limiting port 71 limits the deformation of the elastic free ends of the L-pole movable spring pieces 21 and the N-pole movable spring pieces 22 within a certain range, and avoids the movable spring pieces 2 from being damaged due to overlarge deformation. Meanwhile, when the limiting columns 25 contact the left side and the right side of the limiting opening 71, the movable spring plate 2 can be well buffered.

Binding post 3 is including E utmost point binding post 33, plug bush 4 is including the E utmost point plug bush 43 of being connected with E utmost point binding post 33 electricity, be equipped with the E utmost point holding tank 103 that is used for placing E utmost point binding post 33 on the base 10 and be used for closing cap E utmost point holding tank 103 upper end opening in order to fix E utmost point binding post 33 in E utmost point holding tank 103 utmost point plug bush seat 13, be equipped with the E utmost point plug bush room 131 that is used for placing E utmost point plug bush 43 on E utmost point plug bush seat 13, the pin of E utmost point plug bush 43 passes E utmost point plug bush seat 13 and goes deep into E utmost point holding tank 103, the joint has the first clamp plate 14 that pushes up E utmost point plug bush 43, E utmost point plug bush seat 13, E utmost point binding post 33 three together on the base 10, offer the E utmost point jack 143 that is located E utmost point plug bush seat 13 top on the first.

The L-pole and N-pole sockets 41 and 42 are fixedly disposed between the first pressing plate 14 and the base 10, and the first pressing plate 14 is provided with L-pole and N- pole sockets 141 and 142 above the L-pole and N-pole sockets 41 and 42.

After the first pressing plate 14 is clamped with the base 10, the L-pole, N-pole and E-pole plug bushes 41,42 and 43 are well fixed on the base 10, so that the position deviation of the pins of the plug during insertion is avoided. Because the E pole plug bush 43 and the E pole wiring terminal 33 are not fixedly connected with other parts as independent parts, and the two parts have small volumes, the assembly is not easy, or the positions of the two parts are not easy to fix during the assembly. When the socket is assembled, the E pole wiring terminal 33 is placed in the E pole accommodating groove 103, then the E pole plug bush seat 13 is covered, the E pole wiring terminal 33 is conveniently and flexibly limited in the E pole accommodating groove 103, then the E pole plug bush 43 is placed in the E pole plug bush chamber 131, the E pole plug bush 43 is also conveniently and flexibly limited in the E pole plug bush chamber 131, finally the first pressing plate 14 is covered, the first pressing plate 14 is clamped with the base 10 to cover the upper end opening of the E pole plug bush seat 13, the E pole plug bush seat 13 is firmly pressed on the base 10, the E pole plug bush 43 and the E pole wiring terminal 33 can be respectively fixed in the E pole plug bush chamber 131 and the E pole accommodating groove 103, the mounting process of the socket during production is greatly simplified, the production efficiency is greatly improved, and the yield of finished products is high.

The cover plate 11 may be of an integral structure or a split structure. The cover plate 11 comprises a panel 111 and a decorative frame 110. When the socket of the utility model is a three-hole socket, the L pole plug bush 41, the N pole plug bush 42 and the E pole plug bush 43 are respectively arranged to form a three-pole plug bush; the utility model discloses a during five hole sockets, can divide into a tripolar plug bush and a dipolar plug bush to the L utmost point and the N utmost point of dipolar plug bush are connected with the L utmost point and the N utmost point of tertiary plug bush respectively, thereby realize that tripolar plug bush and dipolar plug bush all have the earth leakage protection function.

The above embodiments are merely preferred embodiments of the present invention, and the present invention may also have other embodiments, such as reasonable combinations of the technical solutions recorded in the embodiments. Equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the invention, and such equivalent modifications or substitutions are intended to be included within the scope of the claims set forth herein.

Claims (10)

1. The utility model provides a take socket of earth leakage protection function which characterized in that: including base (10) and closing cap base (10) open-ended apron (11), be equipped with movable contact spring (2), supply binding post (3) that external power cord electricity is connected, circuit board (7) and drive movable contact spring (2) contact or break away from binding post (3) the on-off mechanism that binding post (3) electricity is connected with binding post (3), circuit board (7) electricity is connected with the drive mechanism who is used for locking or unblock on-off mechanism, movable contact spring (2) electricity is connected with plug bush (4), set up apron jack (12) that the participate in that supplies the plug inserted plug bush (4) on apron (11), still electricity is connected with mutual-inductor (70) whether the detection socket leaks electricity on circuit board (7).

2. A socket with earth leakage protection function according to claim 1, wherein: be equipped with inner shell (8) on circuit board (7), guide way (80) have been seted up in inner shell (8), switch mechanism reciprocates so that make reed (2) contact or break away from removal seat (50) of binding post (3) including following guide way (80), vertical first jack (500) have been seted up in removal seat (50), switch mechanism is still including passing circuit board (7) and inserting reset key (51) of first jack (500) and drive reset key (51) elastic component (52) that upwards resets and move, drive mechanism is including locking device (60), locking device (60) are connected with its drive and insert and move seat (50) in order to remove reset key (51) locking on removing seat (50) or partial drive arrangement (61) of taking out removal seat (50) with unblock reset key (51).

3. A socket with earth leakage protection function according to claim 2, wherein: remove and seted up horizontal second jack (501) on seat (50), locking device (60) including one end insert second jack (501) and with reset key (51) joint, hasp (600) of the output joint of the other end and drive arrangement (61), set up bayonet socket (510) that the one end card that can supply hasp (600) is gone into on reset key (51).

4. A socket with earth leakage protection function according to claim 3, wherein: reset key (51) are including key cap (511) that are located circuit board (7) top and inserted bar (512) that are connected and insert first jack (500) with key cap (511), bayonet socket (510) are seted up on one side of inserted bar (512) towards hasp (600), reset spring on inserted bar (512) is established for the cover to elastic component (52), elastic component (52) suppress between key cap (511) and circuit board (7).

5. A socket with earth leakage protection function according to claim 3, wherein: the one end of hasp (600) is equipped with horizontal joint portion (601) with reset key (51) joint, the other end is equipped with vertical joint portion (602) with the output joint of drive arrangement (61), horizontal joint portion (601) are seted up and are supplied hasp (600) to reset key (51) and remove horizontal direction mouth (603) that removes about, vertical joint portion (602) are seted up and are supplied vertical direction mouth (604) that the output of hasp (600) relative drive arrangement (61) reciprocated.

6. A socket with earth leakage protection function according to claim 5, characterized in that: the driving device (61) is an electromagnet assembly electrically connected with the circuit board (7), and an armature of the electromagnet assembly is connected with the vertical clamping portion (602) in a clamping mode.

7. A socket with earth leakage protection function according to claim 2, wherein: the movable spring piece (2) comprises L-pole and N-pole movable spring pieces (21 and 22) fixedly arranged on two sides of the inner shell (8), movable contacts (24) are arranged at elastic free ends of the L-pole and N-pole movable spring pieces (21 and 22) and downwards press the movable base (50), the wiring terminal (3) comprises L-pole and N-pole wiring terminals (31 and 32), and a static contact (34) electrically connected with the L-pole and N-pole wiring terminals (31 and 32) is arranged on the circuit board (7).

8. A socket with earth leakage protection function according to claim 7, wherein: plug bush (4) are including the L utmost point, the N utmost point plug bush (41,42) of being connected with L utmost point, N utmost point movable reed (21, 22) electricity respectively, the L utmost point, N utmost point movable reed (21, 22) pass mutual-inductor (70) with the wire between the L utmost point, N utmost point plug bush (41,42) respectively, be equipped with spacing post (25) on the L utmost point, N utmost point movable reed (21, 22), offer on circuit board (7) and supply spacing post (25) to insert in order to restrict spacing mouthful (71) of the excessive deformation of the L utmost point, N utmost point movable reed (21, 22).

9. A socket with leakage protection function according to claim 8, wherein: the connecting terminal (3) comprises an E pole connecting terminal (33), the plug bush (4) comprises an E pole plug bush (43) electrically connected with the E pole connecting terminal (33), an E pole accommodating groove (103) used for accommodating the E pole connecting terminal (33) and an E pole plug bush seat (13) used for sealing and covering an upper end opening of the E pole accommodating groove (103) to fix the E pole connecting terminal (33) in the E pole accommodating groove (103) are arranged on the base (10), an E pole plug bush chamber (131) used for accommodating the E pole plug bush (43) is arranged on the E pole plug bush seat (13), a pin of the E pole plug bush (43) penetrates through the E pole plug bush seat (13) and goes deep into the E pole accommodating groove (103), a first pressing plate (14) pressing the E pole plug bush (43), the E pole plug bush seat (13) and the E pole connecting terminal (33) together is clamped on the base (10), and the first pressing plate (14) is provided with an E pole jack (143) positioned above the E pole socket base (13).

10. A socket with earth leakage protection function according to claim 9, wherein: the L pole and N pole plug bushes (41,42) are fixedly arranged between the first pressing plate (14) and the base (10), and L pole and N pole plug holes (141, 142) located above the L pole and N pole plug bushes (41,42) are formed in the first pressing plate (14).

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