CN211719536U

CN211719536U - Residual current protector

Info

Publication number: CN211719536U
Application number: CN201921259801.4U
Authority: CN
Inventors: 余瑜; 彭禄
Original assignee: Hubei University of Technology
Current assignee: Hubei University of Technology
Priority date: 2019-08-06
Filing date: 2019-08-06
Publication date: 2020-10-20
Anticipated expiration: 2029-08-06

Abstract

The utility model discloses a residual current protector, comprising a main body, the main part is at the bottom fixedly connected with loudspeaker of one side outer wall, the main part is at the top fixedly connected with warning light of one side outer wall, the cavity has been seted up to the one end of main part, the main part is equipped with the power in the inside of cavity, and is connected with the wire between power and loudspeaker and the warning light, the top of main part is equipped with input port, the bottom of main part is equipped with output port, first cavity and second cavity have been seted up at the top of main part, the main part is equipped with the electro-magnet in the inside of first cavity, and the through-hole has been seted up to the main part between first cavity and second cavity, and the main part is equipped with the bracing piece in through-hole department. Compared with the prior art, the utility model discloses can set for the size of the induced-current that current induction switch triggered through adjusting the setting value, improve the fault-tolerant rate, warning light and loudspeaker can remind people around when just leaking electricity.

Description

Residual current protector

Technical Field

The utility model relates to an electrical device technical field especially relates to a residual current protector.

Background

Along with the improvement of the human industry level, the mechanical technology becomes more advanced, the application of electric power marks people to move into a new era, the electric power provides a foundation for the rapid development of the science and technology of people, but the electric power not only can help the human beings, but also can bring dangers to people, for example, electric leakage in the operation process of an electric appliance can not only damage the electric appliance, sometimes, the electric leakage, namely residual current, is dangerous to the human body, and is the current vector sum of each phase in a low-voltage distribution circuit and non-zero current.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the ordinary earth-leakage protector of prior art and can not adjust the threshold value, and can't remind people's around shortcoming, and the residual current protector who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a residual current protector comprises a main body, wherein a loudspeaker is fixedly connected to the bottom end of the outer wall of one side of the main body, a warning lamp is fixedly connected to the top end of the outer wall of one side of the main body, a cavity is formed in one end of the main body, a power supply is arranged in the cavity of the main body, a conducting wire is connected between the power supply and the loudspeaker and between the power supply and the warning lamp, an input port is formed in the top end of the main body, an output port is formed in the bottom end of the main body, a first cavity and a second cavity are formed in the top of the main body, an electromagnet is arranged in the first cavity of the main body, a through hole is formed between the first cavity and the second cavity of the main body, a supporting rod is arranged at the position of the through hole, one end of the supporting rod is fixedly connected with the electromagnet, and the supporting block is positioned in the second cavity, the supporting spring is sleeved outside the supporting rod, and the supporting spring is positioned in the second cavity.

Furthermore, one side of the supporting block is fixedly connected with three conductors, a group of contact pieces are arranged on the inner walls of the top end and the bottom end of the second cavity of the main body, each group of contact pieces comprises three elastic contact pieces, and a first lead and a second lead are connected between the two groups of contact pieces and the input port and the output port respectively.

Furthermore, the outside cover of second wire is equipped with current transformer, the outside cover of current transformer output line is equipped with current induction switch, be connected with the wire between current induction switch and the power.

Furthermore, a groove is formed in the inner wall of the top end of the second cavity of the main body, a second sliding block is arranged in the groove of the main body, a second spring is sleeved outside the second sliding block and located inside the groove, a groove is formed in the top end of the supporting block, and the groove is matched with the second sliding block.

Furthermore, a groove is formed in the top end of the main body, a first sliding block is arranged at the groove of the main body, a first spring is sleeved outside the first sliding block and located inside the groove, a rigid line is fixedly connected to one side of the first sliding block, and the rigid line is fixedly connected with the second sliding block.

Furthermore, wires are connected between the current induction switch and the electromagnet, between the loudspeaker and the warning lamp, and wires are connected between the electromagnet and the power supply.

The utility model has the advantages that:

1. through setting up current transformer, current induction switch, electromagnet, when taking place the electric leakage condition, current among the current transformer can be sensed to current induction switch, and when the current reached the setting value, the switch-on of current induction switch, the electro-magnet was with line break-off, avoided the electric shock.

2. Through setting up warning light and loudspeaker, during the electric leakage, warning light and loudspeaker can connect the power, reach the purpose of reminding people around.

Compared with the prior art, the utility model discloses can set for the size of the induced-current that current induction switch triggered through adjusting the setting value, improve the fault-tolerant rate, warning light and loudspeaker can remind people around when just leaking electricity.

Drawings

Fig. 1 is a schematic front view of a residual current protector according to the present invention;

fig. 2 is a schematic side view of a residual current protector according to the present invention;

fig. 3 is an enlarged schematic structural diagram of a part a of the residual current protector provided by the utility model.

In the figure: the device comprises a main body 1, an electromagnet 2, a support rod 3, a support spring 4, a first slide block 5, an input port 6, a support block 7, a conductor 8, a current transformer 9, an output port 10, a current sensing switch 11, a power supply 12, a loudspeaker 13, a warning light 14, a rigid wire 15, a first spring 16, a second slide block 17 and a second spring 18.

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.

Referring to fig. 1-3, a residual current protector comprises a main body 1, a horn 13 is fixedly connected to the bottom end of the outer wall of one side of the main body 1, a warning light 14 is fixedly connected to the top end of the outer wall of one side of the main body 1, a cavity is formed at one end of the main body 1, a power supply 12 is arranged in the cavity of the main body 1, wires are connected between the power supply 12 and the horn 13 and between the warning light 14, an input port 6 is arranged at the top end of the main body 1, an output port 10 is arranged at the bottom end of the main body 1, a first cavity and a second cavity are formed at the top end of the main body 1, an electromagnet 2 is arranged in the first cavity of the main body 1, a through hole is formed in the main body 1 between the first cavity and the second cavity, a support rod 3 is arranged at the through hole of the main body 1, one end of the support rod 3, the supporting block 7 is arranged in the second cavity, the supporting spring 4 is sleeved outside the supporting rod 3, the supporting spring 4 is arranged in the second cavity, one side of the supporting block 7 is fixedly connected with three conductors 8, the main body 1 is provided with a group of contact pieces at the top end and the bottom end of the second cavity, each group of contact pieces comprises three elastic contact pieces, a first lead and a second lead are respectively connected between the two groups of contact pieces and the input port 6 and the output port 10, the current transformer 9 is sleeved outside the second lead, the current sensing switch 11 is sleeved outside the output line of the current transformer 9, a lead is connected between the current sensing switch 11 and the power supply 12, the main body 1 is provided with a groove at the top end inner wall of the second cavity, the main body 1 is provided with a second sliding block 17 at the groove, a second spring 18 is sleeved outside the second sliding block 17, and the second spring 18 is arranged, the top of supporting shoe 7 has seted up the recess, and recess and second slider looks adaptation, the recess has been seted up on the top of main part 1, main part 1 is equipped with first slider 5 in groove, the outside cover of first slider 5 is equipped with first spring 16, and first spring 16 is inside the recess, one side fixed connection has rigidity line 15 of first slider 5, and rigidity line 15 and second slider 17 fixed connection, current induction switch 11 and electro-magnet 2, be connected with the wire between loudspeaker 13 and the warning light 14, be connected with the wire between electro-magnet 2 and the power 12.

The working principle is as follows: the input port 6 and the output port 10 of the device are connected with phase lines, when the electric leakage of an electric appliance occurs, the conducting wires generate residual current, a secondary loop of a SHI-0.66-30I type current transformer 9 generates current, when the current is larger than the current set by an LC10 type current induction switch 11, the current induction switch 11 is connected with a power supply 12, a GPM0837T-18 type electromagnet 2, an S80LS type warning lamp 14 and a KDL129C type horn 13 are connected with a PATL371229 type power supply 12, the electromagnet 2 drives a supporting rod 3 to move, the supporting rod 3 drives a supporting block 7 to move, the supporting block 7 compresses a supporting spring 4, the supporting block 7 drives a conductor 8 to move, the first conducting wire is disconnected with the second conducting wire, the phase lines connected with the input port 6 and the output port 10 are disconnected, the supporting block 7 continues to move, a second sliding block 17 enters a groove above the supporting block 7 when the second spring 18 is used, the supporting, the first spring 16 is compressed to drive the rigid wire 15 to move, the rigid wire 15 drives the second sliding block 17 to ascend and compress the second spring 18, the second sliding block 17 leaves the groove above the supporting block 7, the supporting block 7 is pushed by the supporting spring 4 to move, the supporting block 7 pushes the conductor 8 to be in contact with the contact piece, and the phase line connected with the input port 6 and the output port 10 is connected.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The residual current protector comprises a main body (1) and is characterized in that the main body (1) is provided with a loudspeaker (13) at the bottom end of the outer wall of one side, the main body (1) is provided with a warning lamp (14) at the top end of the outer wall of one side, one end of the main body (1) is provided with a cavity, the main body (1) is provided with a power supply (12) inside the cavity, a wire is connected between the power supply (12) and the loudspeaker (13) as well as between the power supply (12) and the warning lamp (14), the top end of the main body (1) is provided with an input port (6), the bottom end of the main body (1) is provided with an output port (10), the top of the main body (1) is provided with a first cavity and a second cavity, the main body (1) is provided with an electromagnet (2) inside the first cavity, the main body (1) is provided with a through hole between the first, one end and electro-magnet (2) fixed connection of bracing piece (3), bracing piece (3) extend to the inside of second cavity in through-hole department, the one end of bracing piece (3) is equipped with supporting shoe (7), and supporting shoe (7) are in the inside of second cavity, the outside cover of bracing piece (3) is equipped with supporting spring (4), and supporting spring (4) are in the inside of second cavity.

2. A residual current protector according to claim 1, characterized in that the support block (7) is provided with three conductors (8) on one side, and the body (1) is provided with a set of contacts on the inner wall of the top and bottom ends of the second cavity, each set of contacts comprising three resilient contacts, and two sets of contacts being connected with the first and second conductors between the input port (6) and the output port (10), respectively.

3. A residual current protector according to claim 2, characterized in that a current transformer (9) is sleeved outside the second conductor, a current sensing switch (11) is sleeved outside an output line of the current transformer (9), and a conductor is connected between the current sensing switch (11) and the power supply (12).

4. The residual current protector according to claim 1, wherein the main body (1) is provided with a groove at the top end inner wall of the second cavity, the main body (1) is provided with a second slider (17) at the groove, a second spring (18) is sleeved outside the second slider (17), the second spring (18) is positioned inside the groove, the top end of the supporting block (7) is provided with a groove, and the groove is matched with the second slider.

5. The residual current protector according to claim 4, characterized in that a groove is formed at the top end of the main body (1), a first slider (5) is arranged at the groove of the main body (1), a first spring (16) is sleeved outside the first slider (5), the first spring (16) is positioned inside the groove, a rigid wire (15) is fixedly arranged on one side of the first slider (5), and the rigid wire (15) is fixedly connected with a second slider (17).

6. A residual current protector according to claim 3, characterised in that conductors are connected between the current sensing switch (11) and the electromagnet (2), the horn (13) and the warning light (14), and conductors are connected between the electromagnet (2) and the power supply (12).