CN115528656A - Safety type electric power protection device and protection method thereof - Google Patents

Safety type electric power protection device and protection method thereof Download PDF

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Publication number
CN115528656A
CN115528656A CN202211490488.1A CN202211490488A CN115528656A CN 115528656 A CN115528656 A CN 115528656A CN 202211490488 A CN202211490488 A CN 202211490488A CN 115528656 A CN115528656 A CN 115528656A
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CN
China
Prior art keywords
connecting block
block
wall
groove
electric
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Granted
Application number
CN202211490488.1A
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Chinese (zh)
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CN115528656B (en
Inventor
罗志宏
史干东
邹璇
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State Grid Xuzhou Power Supply Co
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State Grid Xuzhou Power Supply Co
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Priority to CN202211490488.1A priority Critical patent/CN115528656B/en
Publication of CN115528656A publication Critical patent/CN115528656A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/16—Earthing arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24—Circuit arrangements for boards or switchyards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/46—Boxes; Parts thereof or accessories therefor
    • H02B1/48—Mounting of devices therein
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The invention discloses a safe electric protection device and a protection method thereof, wherein the device comprises an electric appliance box and a control panel, wherein the control panel is fixed on the inner wall of the electric appliance box; the control panel comprises a sliding chute arranged on the outer wall of the control panel, a first connecting block and a second connecting block are arranged in the sliding chute in a sliding mode, the first connecting block is connected with internal equipment through an electric wire, and the second connecting block is connected with an external power supply; absorb the piece, absorb the piece and pass through electric wire ground connection, just absorb the piece and fix the inner wall that the spout is close to the second connecting block, when faults such as overload appear in the circuit, accomplish the effect of broken circuit, meanwhile, under the effect of bullet subassembly, accomplish the ground connection processing after opening circuit, derive and release remaining electric current among the power equipment, thereby prevent that maintenance personal from taking place the electric shock phenomenon because of the electric leakage after opening the electrical apparatus case, the security when improving the maintenance, both protected the inside electrical component's of electrical apparatus case safety, maintenance personal's safety is also guaranteed simultaneously.

Description

Safety type electric power protection device and protection method thereof
Technical Field
The invention relates to the technical field of electric power protection equipment, in particular to a safety type electric power protection device and a protection method thereof.
Background
In the use of power equipment, after long-time use, short circuit caused by overlarge current or load is a common fault, and the conventional power equipment is generally provided with a circuit breaking protection device for breaking a circuit when a fault occurs, so that the effect of protecting other internal electrical elements is achieved, and the loss is reduced.
However, a fault of the circuit needs a worker to open an electrical box or a transformer box and the like for repair processing, and although the circuit breaking protection equipment can perform disconnection processing on the circuit, no effective measure is performed on leakage processing, and leaked current cannot be absorbed or led out, so that a certain electric shock risk is caused to a maintainer.
Disclosure of Invention
The invention aims to provide a safety type electric power protection device and a protection method thereof, and aims to solve at least one technical problem in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a safe type electric power protector, includes the electrical apparatus case, still includes:
the control panel is fixed on the inner wall of the electric appliance box;
the control panel comprises a sliding chute arranged on the outer wall of the control panel, a first connecting block and a second connecting block are arranged in the sliding chute in a sliding mode, the first connecting block is connected with internal equipment through an electric wire, and the second connecting block is connected with an external power supply;
the absorption block is grounded through an electric wire and is fixed on the inner wall of the sliding groove close to the second connecting block;
the bouncing component is provided with a first state and a second state, the bouncing component is used for enabling the first connecting block to be in contact with and electrically communicated with the second connecting block in the first state, the bouncing component is used for enabling the first connecting block to be separated from the second connecting block in the second state, and the second connecting block is in contact with the absorption block and is communicated with the absorption block through the connecting end.
Preferably, the pop-up assembly includes a connecting assembly for connecting the first connecting block and the second connecting block together;
the outer wall of the control plate, which is close to the absorption block, is provided with a flat groove covering the sliding groove, and the inner walls of the grooves at two sides of the second connecting block are rotatably connected with the second connecting block through tension springs;
the spring-open assembly further comprises a driving assembly, when the current in the circuit is larger than a preset value, the driving assembly drives the first connecting block to slide in the direction away from the absorbing block, and when the first connecting block moves to a preset position, the connecting assembly releases the connecting state of the first connecting block and the second connecting block.
Preferably, the connecting assembly comprises a fixed block fixed on the outer wall of the first connecting block, the outer walls of the first connecting blocks positioned on two sides of the fixed block are rotatably provided with bent clamping rods, the two bent clamping rods are symmetrically arranged, the bent parts of the two bent clamping rods, which are far away from the second connecting block, are connected with elastic parts, the top of the second connecting block is fixedly provided with a clamping block, and when the first connecting block is in contact with the second connecting block and is electrically communicated with the second connecting block, the two bent clamping rods clamp and fix the clamping block through a hook body at the front end;
the outer wall of the control panel is provided with a limiting groove, the bending parts of the two bent clamping rods are contacted and pressed against the inner wall of the limiting groove, the outer wall of the control panel, which is far away from the absorption block, is provided with a furling groove communicated with the limiting groove, and the furling groove can enable the two bent clamping rods to rotate relatively.
Preferably, the connecting end comprises a conductive end which is installed on the outer wall of the first connecting block and electrically connected with the first connecting block, a transverse groove is formed in the outer wall, close to the absorbing block, of the second connecting block, two insulating blocks are installed in the transverse groove in a sliding mode, the back surfaces of the two insulating blocks are connected with the inner wall of the transverse groove through springs, cavities are formed in the inner walls, attached to the two insulating blocks, of the two insulating blocks, the conductive end is located in the cavities, inclined surfaces are formed in the end portions of the two insulating blocks, and the inclined surfaces are arranged oppositely;
the link is still including seting up at the absorption piece outer wall and can supplying electrically conductive end male jack, just install the conducting strip in the jack, be located the absorption piece outer wall of jack both sides is all seted up and is supplied insulating block male wedge hole, just interference fit between insulating block and the wedge hole.
Preferably, the connecting device further comprises an inner groove formed in the inner wall of the sliding groove, and a sliding block fixedly connected with the first connecting block is installed in the inner groove in a sliding mode.
Preferably, the driving assembly comprises an electromagnet which is arranged in the inner groove and close to the side wall of the absorption block, the current of the electromagnet synchronously changes along with the current in the circuit, a magnet is fixed on the outer wall of the sliding block, and the magnet and the electromagnet are opposite in homopolar.
Preferably, the driving assembly comprises an air bag, and the air bag is arranged between the sliding block and the inner wall of the inner groove close to the absorption block;
the driving assembly further comprises an air pump used for inflating the air bag and a current detection device used for detecting the current in the circuit, and when the current detected by the current detection device exceeds a preset value, the air pump is controlled to inflate the air bag.
Preferably, the outer walls of the back sides of the two insulation blocks are provided with elastic protrusions, and the inner wall of the wedge hole is provided with a corresponding recess.
Preferably, when the sliding block slides to the inner groove close to the tail end of the absorption block, the first connecting block does not cross the connecting point of the two tension springs on the flat groove.
A protection method of a safety type electric power protection device comprises the following steps:
s1, connecting a first connecting block and a second connecting block through a connecting assembly, and enabling the safety type electric power protection device to be in a normal use state through an electric connection structure between the first connecting block and the second connecting block in an electric communication state;
s2, when the circuit breaks down, the driving assembly drives the first connecting block to slide towards the direction far away from the absorbing block, meanwhile, under the action of the connecting assembly, the second connecting block synchronously moves, the tension spring starts to stretch to accumulate force, and when the first connecting block moves to a preset position, the connecting assembly releases the connection state of the first connecting block and the second connecting block, so that the circuit is in an open circuit state;
and S3, under the tension of the tension spring, the second connecting block moves the absorbing block rapidly, is in contact communication with the absorbing block through the connecting end, is grounded, and guides out the residual current after the circuit is broken and the current in the circuit to prevent maintenance personnel from electric shock.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, through the matching of the structures, when faults such as overload and the like occur in the circuit, the bouncing assembly separates the first connecting block from the second connecting block, so that the purpose of disconnecting the circuit is achieved, meanwhile, under the action of the bouncing assembly, the second connecting block is contacted with the absorption block and is communicated through the connecting end, the grounding treatment after the circuit is disconnected is completed, and the residual current in the power equipment is led out and released, so that the electric shock phenomenon caused by electric leakage after a maintenance worker opens the electric box is prevented, the safety during maintenance is improved, the safety of electric elements in the electric box is protected, and the safety of the maintenance worker is ensured.
Drawings
FIG. 1 is a perspective expanded view of the safety electrical protection device of the present invention;
FIG. 2 is a perspective view of the control panel of the present invention;
FIG. 3 is a front view of the control panel of the present invention;
FIG. 4 is a cross-sectional view and a partial enlarged view of the control panel from the perspective of FIG. 3 in accordance with the present invention;
FIG. 5 is a cross-sectional view of the inner tank from the perspective of FIG. 3 in accordance with the present invention;
FIG. 6 is a perspective view of a control board in the driving assembly according to the second embodiment of the present invention;
FIG. 7 is a cross-sectional view of the inner tank of the driving assembly according to the second embodiment of the present invention.
In the figure: 1. an electrical box; 2. a control panel; 3. a chute; 4. a first connection block; 5. a second connecting block; 6. a fixed block; 7. a bent clamping rod; 8. an elastic member; 9. a clamping block; 10. a limiting groove; 11. a gathering groove; 12. a tension spring; 13. an absorbent block; 14. a hook body; 15. an insulating block; 16. a conductive terminal; 17. a spring; 18. a jack; 19. a wedge hole; 20. a partition plate; 21. a conductive sheet; 22. an inner tank; 23. a slider; 24. a magnet; 25. an electromagnet; 26. an air bag.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1 to 5, the present invention provides a technical solution: a safety electric power protection device comprises an electric appliance box 1 and also comprises
The control panel 2 is fixed on the inner wall of the electric appliance box 1;
the control device comprises a sliding chute 3 arranged on the outer wall of the control panel 2, a first connecting block 4 and a second connecting block 5 are arranged in the sliding chute 3 in a sliding mode, the first connecting block 4 is connected with internal equipment through an electric wire, and the second connecting block 5 is connected with an external power supply;
the absorption block 13 is grounded through an electric wire, and the absorption block 13 is fixed on the inner wall of the sliding chute 3 close to the second connecting block 5;
the pop-up component has a first state and a second state, in the first state, the first connecting block 4 is in contact with and electrically communicated with the second connecting block 5, in the second state, the pop-up component enables the first connecting block 4 to be separated from the second connecting block 5, and the second connecting block 5 is in contact with the absorption block 13 and is communicated through the connecting end. In this embodiment, the first state refers to a state where the safety type electric power protection device is in a normal path, and the second state refers to a state where the safety type electric power protection device fails.
In the use process of the safety type electric power protection device, under the normal access state, the first connecting block 4 and the second connecting block 5 are in a contact and electric communication state, and are communicated in a conducting strip mode or in a splicing mode;
then when faults such as overload appear in the circuit, the component is flicked to separate the first connecting block 4 from the second connecting block 5, thereby achieving the purpose of breaking the circuit, meanwhile, under the action of the component, the second connecting block 5 is contacted with the absorbing block 13 and communicated through the connecting end, the grounding treatment after the circuit is broken is completed, the residual current in the power equipment is led out and released, thereby preventing the maintenance personnel from electric shock phenomenon caused by electric leakage after the maintenance personnel opens the electric box 1, the safety during maintenance is improved, the safety of the electric elements in the electric box 1 is protected, and meanwhile, the safety of the maintenance personnel is also ensured.
In one of the preferred embodiments, the pop-up assembly includes a connecting assembly for connecting the first connecting block 4 and the second connecting block 5 together;
the outer wall of the control plate 2 close to the absorption block 13 is provided with a flat groove covering the sliding groove 3, and the inner walls of the grooves at two sides of the second connecting block 5 are both rotatably connected with the second connecting block 5 through tension springs 12;
the spring-open assembly further comprises a driving assembly, when the current in the circuit is too large, the driving assembly drives the first connecting block 4 to slide in the direction away from the absorbing block 13, and when the first connecting block 4 moves to a preset position, the connecting assembly releases the connecting state of the first connecting block 4 and the second connecting block 5.
On the basis of the above, the first connecting block 4 and the second connecting block 5 are connected by the connecting assembly, when the current in the circuit is increased due to abnormality, the driving assembly drives the first connecting block 4 and the second connecting block 5 to move together in the direction away from the absorbing block 13, specifically refer to fig. 2-3, at the same time, the tension spring 12 is stretched and accumulates elastic potential energy, when the first connecting block 4 moves to a preset position, that is, the current in the circuit is increased to a dangerous value due to abnormality, the connecting assembly releases the connection state of the first connecting block 4 and the second connecting block 5, and the second connecting block 5 is rapidly separated under the pulling force of the tension spring 12, so that the circuit is subjected to open circuit processing, and due to rapid separation of the first connecting block 4 and the second connecting block, the occurrence of electric arc due to excessive current can be avoided, and the influence on other internal elements can be further reduced;
meanwhile, the second connecting block 5 can cross the joint of the tension spring 12 and the flat groove under the action of inertia thereof, is in contact with the absorbing block 13, and is communicated with the absorbing block 13 through the connecting end, so that grounding processing is completed, residual current is led out and released, the phenomenon that personnel get an electric shock subsequently appears is prevented, and safety performance is improved.
In one preferred embodiment, the connecting assembly comprises a fixing block 6 fixed on the outer wall of the first connecting block 4, bent clamping rods 7 are rotatably mounted on the outer wall of the first connecting block 4 on two sides of the fixing block 6, the two bent clamping rods 7 are symmetrically arranged, an elastic part 8 is connected to a bent part, far away from the second connecting block 5, of each bent clamping rod 7, a clamping block 9 is fixed to the top of the second connecting block 5, and when the first connecting block 4 is in contact with and electrically communicated with the second connecting block 5, the clamping block 9 is clamped and fixed by the two bent clamping rods 7 through a hook 14 at the front end;
the outer wall of the control panel 2 is provided with a limiting groove 10, the bending parts of the two bent clamping rods 7 are contacted and abutted against the inner wall of the limiting groove 10, the outer wall of the control panel 2, which is far away from the absorption block 13, is provided with a furling groove 11 communicated with the limiting groove 10, and the furling groove 11 can enable the two bent clamping rods 7 to rotate relatively.
In a connection state, the two bent clamping rods 7 can be opened and contacted with the limiting groove 10 under the action of the elastic force of the elastic piece 8, and meanwhile, the clamping block 9 is clamped and fixed by the hook bodies 14 at the end parts;
when the driving assembly drives the first connecting block 4 to move upwards, the two bent clamping rods 7 can slide along the limiting groove 10, when the two bent clamping rods 7 move to extend into the furling groove 11, the two bent clamping rods 7 can rotate relatively due to the inclined planes of the inner walls of the bent clamping rods, the elastic piece 8 contracts, the hook bodies 14 at the end parts are opened mutually, the limiting clamping effect on the clamping blocks 9 is relieved, then the separation process between the first connecting block 4 and the second connecting block 5 is completed under the tensile force action of the tension spring 12, and the circuit breaking effect is realized.
It should be mentioned that, during connection, the second connecting block 5 can be directly pushed to move upwards, then the clamping block 9 contacts the hook 14, and under the action of the fillet thereon, the two hooks 14 are pushed apart until the clamping block 9 is clamped by the two hooks 14, and the two connecting blocks are connected in a contact manner, thereby completing the process of connecting the power.
In one preferred embodiment, the connecting end comprises a conductive end 16 which is installed on the outer wall of the first connecting block 4 and electrically connected with the first connecting block, a transverse groove is formed in the outer wall, close to the absorbing block 13, of the second connecting block 5, two insulating blocks 15 are installed in the transverse groove in a sliding mode, springs 17 are connected to the back faces of the two insulating blocks 15 and the inner wall of the transverse groove, cavities are formed in the inner walls, attached to the two insulating blocks 15, of the two insulating blocks, the conductive end 16 is located in the cavities, inclined faces are formed in the end portions of the two insulating blocks 15, and the inclined faces are arranged oppositely;
the connecting end further comprises a jack 18 which is arranged on the outer wall of the absorbing block 13 and can be used for inserting the conductive end 16, a conductive sheet 21 is arranged in the jack 18, wedge holes 19 which can be used for inserting the insulating block 15 are formed in the outer walls of the absorbing block 13 which are positioned on two sides of the jack 18, and the insulating block 15 is in interference fit with the wedge holes 19.
Referring to fig. 2 and 4, in a normal communication state, under the elastic force of the two springs 17, the two insulating blocks 15 are in a close state, and wrap the conductive end 16 inside to achieve the effect of sealing and isolating;
then when the second connecting block 5 moves under the action of the tension spring 12, the inclined planes at the end parts of the two insulating blocks 15 impact on the partition plate 20 between the jack 18 and the wedge hole 19, so that the two insulating blocks are far away from each other, the conductive end 16 is exposed and is inserted into the jack 18 along with the movement to be in contact communication with the conductive sheet 21, the power connection process is completed, meanwhile, the two extruded insulating blocks 15 are respectively inserted into the two wedge holes 19, and the locking effect is realized through interference fit, so that the contact between the conductive end 16 and the conductive sheet 21 is maintained;
and because the tension of the tension spring 12 is matched with the inertia of the second connecting block 5, the two insulating blocks 15 are separated by the impact, the insulating blocks 15 are inserted into the wedge holes 19, and the locking effect achieved by interference fit can also avoid the separation of the second connecting block 5 and the absorbing block 13 after the impact under the tension of the tension spring 12.
In one preferred embodiment, the device further comprises an inner groove 22 formed in the inner wall of the sliding groove 3, and a sliding block 23 fixedly connected with the first connecting block 4 is slidably mounted in the inner groove 22.
The sliding fit between the sliding block 23 and the inner groove 22 can also limit the first connecting block 4.
In one preferred embodiment, the driving assembly includes an electromagnet 25 mounted on the inner groove 22 near the side wall of the absorber 13, and the current of the electromagnet 25 is changed synchronously with the current in the circuit, and a magnet 24 is fixed on the outer wall of the sliding block 23, and the magnet 24 and the electromagnet 25 are opposite in the same polarity.
Referring to fig. 3 and 5, in a normal passage state, the repulsive force between the magnet 24 and the electromagnet 25 cannot make the bent clamping rod 7 on the first connecting block 4 extend into the closing groove 11 to maintain the passage state;
when the current in the circuit is abnormally increased, the current in the electromagnet 25 is also increased synchronously, the magnetic force of the electromagnet 25 is increased at the moment, and the repulsive force is also increased, so that the magnet 24 and the sliding block 23 are pushed to move to drive the first connecting block 4 to move upwards until the bent clamping rod 7 extends into the furling groove 11 to complete the circuit breaking process;
it is worth mentioning that, in the process, even if the current in the circuit fluctuates within a certain safety range, the current cannot be immediately broken, and only when the current in the circuit increases and exceeds a preset value, the breaking processing is performed, so that the method is suitable for scenes where the current is unstable and the fluctuation is frequent.
Example two
The second embodiment of the driving assembly is provided in the second embodiment:
on the basis of the first embodiment, the driving assembly further comprises an air bag 26, and the air bag 26 is installed between the sliding block 23 and the inner wall of the inner groove 22 close to the absorption block 13;
in a preferred embodiment, the driving assembly further comprises an air pump for inflating the air bag 26 and a current detection device for detecting the current in the circuit, and the air pump is controlled to inflate the air bag 26 when the current detection device detects that the current exceeds a preset value.
Referring to fig. 6-7, in the present embodiment, when the current in the circuit detected by the current detecting device exceeds the preset value, the pneumatic air pump is controlled to inflate the air bag 26, and the slider 23 and the first connecting block 4 are driven to move by the expansion and elongation of the air bag 26.
Wherein, the current detection device (such as a multimeter, an ammeter, etc.) and the air pump can be realized by those skilled in the art, and are not shown in the figure.
In a preferred embodiment, the outer walls of the opposite sides of the two insulating blocks 15 are provided with elastic protrusions, and the inner wall of the wedge hole 19 is provided with corresponding recesses.
Referring to fig. 4 in particular, when the insulation block 15 is inserted into the wedge hole 19, the locking effect is achieved through the cooperation of the elastic protrusions and the recesses, and compared with the locking effect of the interference fit, the locking effect can be used repeatedly, and the locking effect loss caused by abrasion after the interference fit is used for multiple times is avoided.
In one preferred embodiment, when the slider 23 slides into the inner groove 22 near the end of the absorber 13, the first link 4 has not yet passed over the connection point of the two tension springs 12 in the flat groove.
The first connecting block 4 and the second connecting block 5 can be prevented from being contacted and communicated again through the limiting effect of the sliding block 23 on the first connecting block 4, so that the open circuit state is kept.
The working principle or working process of the safety type electric power protection device in the first embodiment or the second embodiment is briefly described as follows:
a protection method of a safety type electric power protection device comprises the following steps:
s1, connecting a first connecting block 4 and a second connecting block 5 through a connecting assembly, and enabling the safety type electric power protection device to be in a normal use state through an electric connection structure between the first connecting block and the second connecting block in an electric communication state;
s2, when the circuit breaks down, the driving assembly drives the first connecting block 4 to slide in the direction away from the absorbing block 13, meanwhile, under the action of the connecting assembly, the second connecting block 5 synchronously moves, the tension spring 12 starts to stretch and accumulate force, and when the first connecting block 4 moves to a preset position, the connecting assembly releases the connection state of the first connecting block 4 and the second connecting block 5, so that the circuit is in an open circuit state;
and S3, under the tension of the tension spring 12, the second connecting block 5 moves towards the absorption block 13 rapidly, is in contact communication with the absorption block 13 through the connecting end, is grounded, and guides out the residual current after the circuit is broken and the current in the circuit to prevent maintenance personnel from electric shock.
The standard parts used in the present embodiment may be purchased directly from the market, and the non-standard structural components described in the specification and drawings may also be processed directly according to the conventional technical common knowledge without any doubt, and the connection manner of the respective parts is a conventional manner well-established in the prior art, and the machines, parts and equipment are of a conventional type in the prior art, so that detailed description thereof is omitted.
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 (10)

1. The utility model provides a safe type electric power protector, includes electrical apparatus case (1), its characterized in that still includes:
the control panel (2) is fixed on the inner wall of the electric appliance box (1);
the device comprises a sliding chute (3) arranged on the outer wall of a control panel (2), wherein a first connecting block (4) and a second connecting block (5) are arranged in the sliding chute (3) in a sliding mode, the first connecting block (4) is connected with internal equipment through an electric wire, and the second connecting block (5) is connected with an external power supply;
the absorption block (13) is grounded through an electric wire, and the absorption block (13) is fixed on the inner wall, close to the second connecting block (5), of the sliding chute (3);
the pop-up component is provided with a first state and a second state, the pop-up component is used for enabling the first connecting block (4) to be in contact with and electrically communicated with the second connecting block (5) in the first state, the pop-up component is used for enabling the first connecting block (4) to be separated from the second connecting block (5) in the second state, and the second connecting block (5) is in contact with the absorbing block (13) and is communicated with the absorbing block through the connecting end.
2. The safety electrical power guard of claim 1, wherein: the ejection assembly comprises a connecting assembly for connecting the first connecting block (4) and the second connecting block (5) together;
the outer wall of the control plate (2) close to the absorption block (13) is provided with a flat groove covering the sliding groove (3), and the inner walls of the grooves at two sides of the second connecting block (5) are rotatably connected with the second connecting block (5) through tension springs (12);
the pop-up assembly further comprises a driving assembly, when the current in the circuit is larger than a preset value, the driving assembly drives the first connecting block (4) to slide towards the direction away from the absorbing block (13), and when the first connecting block (4) moves to a preset position, the connecting assembly releases the connection state of the first connecting block (4) and the second connecting block (5).
3. The safety electrical power guard of claim 2, wherein: the connecting assembly comprises a fixing block (6) fixed on the outer wall of a first connecting block (4), bent clamping rods (7) are arranged on the outer wall of the first connecting block (4) positioned on two sides of the fixing block (6) in a rotating mode, the bent clamping rods (7) are symmetrically arranged, elastic parts (8) are connected to bent positions, away from a second connecting block (5), of the two bent clamping rods (7), clamping blocks (9) are fixed to the top of the second connecting block (5), and when the first connecting block (4) is in contact with the second connecting block (5) and is electrically communicated with the second connecting block, the two bent clamping rods (7) clamp and fix the clamping blocks (9) through hook bodies (14) at the front ends;
the outer wall of the control panel (2) is provided with a limiting groove (10), the bending positions of the two bent clamping rods (7) are in contact and abut against the inner wall of the limiting groove (10), the outer wall, far away from the absorption block (13), of the control panel (2) is provided with a furling groove (11) communicated with the limiting groove (10), and the furling groove (11) can enable the two bent clamping rods (7) to rotate relatively.
4. The safety electrical power guard of claim 2, wherein: the connecting end comprises a conductive end (16) which is arranged on the outer wall of the first connecting block (4) and electrically connected with the first connecting block, a transverse groove is formed in the outer wall, close to the absorbing block (13), of the second connecting block (5), two insulating blocks (15) are slidably arranged in the transverse groove, springs (17) are connected to the back surfaces of the two insulating blocks (15) and the inner wall of the transverse groove, cavities are formed in the inner walls, which are attached to the two insulating blocks (15), of the two insulating blocks, the conductive end (16) is located in the cavities, inclined surfaces are formed in the end portions of the two insulating blocks (15), and the inclined surfaces are arranged oppositely;
the link is still including seting up in absorption piece (13) outer wall and can supply electrically conductive end (16) male jack (18), just install conducting strip (21) in jack (18), be located absorption piece (13) outer wall of jack (18) both sides all is seted up and is supplied insulating block (15) male wedge hole (19), just interference fit between insulating block (15) and wedge hole (19).
5. The safety electrical power guard of claim 2, wherein: the connecting device is characterized by further comprising an inner groove (22) formed in the inner wall of the sliding groove (3), and a sliding block (23) fixedly connected with the first connecting block (4) is installed in the inner groove (22) in a sliding mode.
6. The safety electrical power guard of claim 5, wherein: the driving assembly comprises an electromagnet (25) which is arranged on the inner groove (22) and close to the side wall of the absorption block (13), the current of the electromagnet (25) synchronously changes along with the current in the circuit, a magnet (24) is fixed on the outer wall of the sliding block (23), and the magnet (24) and the electromagnet (25) are opposite in homopolar.
7. The safety electrical power guard of claim 5, wherein: the driving assembly comprises an air bag (26), and the air bag (26) is arranged between the sliding block (23) and the inner wall of the inner groove (22) close to the absorption block (13);
the driving assembly further comprises an air pump for inflating the air bag (26) and a current detection device for detecting the current in the circuit, and when the current detection device detects that the current exceeds a preset value, the air pump is controlled to inflate the air bag (26).
8. The safety electrical power guard of claim 4, wherein: the outer walls of the back surfaces of the two insulation blocks (15) are provided with elastic bulges, and the inner wall of the wedge hole (19) is provided with a corresponding recess.
9. The safety electrical power guard of claim 5, wherein: when the sliding block (23) slides to the end of the inner groove (22) close to the absorption block (13), the first connecting block (4) does not cross the connecting point of the two tension springs (12) on the flat groove.
10. A protection method applied to the safety type electric power protection device according to any one of claims 2 to 9, characterized by comprising the following steps:
s1, a first connecting block (4) and a second connecting block (5) are connected through a connecting assembly, and the first connecting block and the second connecting block are in an electric communication state through an electric connection structure between the first connecting block and the second connecting block, so that the safety type electric power protection device is in a normal use state;
s2, when the circuit breaks down, the driving assembly drives the first connecting block (4) to slide towards the direction far away from the absorbing block (13), meanwhile, under the action of the connecting assembly, the second connecting block (5) synchronously moves, the tension spring (12) starts to stretch and accumulate force, and when the first connecting block (4) moves to a preset position, the connecting assembly releases the connection state of the first connecting block (4) and the second connecting block (5), so that the circuit is in an open circuit state;
s3, under the pulling force of extension spring (12), second connecting block (5) to absorb piece (13) rapid draing to through link and absorption piece (13) contact intercommunication, carry out ground connection and handle, derive the remaining electric current after will breaking and the electric current in the circuit, in order to prevent that maintenance personal from taking place the electric shock phenomenon.
CN202211490488.1A 2022-11-25 2022-11-25 Safety type electric power protection device and protection method thereof Active CN115528656B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116741597A (en) * 2023-06-16 2023-09-12 国网黑龙江省电力有限公司营销服务中心 Household power load monitoring device

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Publication number Priority date Publication date Assignee Title
CN111162501A (en) * 2020-01-13 2020-05-15 李建科 Electric power is with detection of opening circuit treater
CN112260085A (en) * 2020-10-29 2021-01-22 都美娟 Electrical cabinet capable of reducing electric shock injury

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Publication number Priority date Publication date Assignee Title
CN111162501A (en) * 2020-01-13 2020-05-15 李建科 Electric power is with detection of opening circuit treater
CN112260085A (en) * 2020-10-29 2021-01-22 都美娟 Electrical cabinet capable of reducing electric shock injury

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116741597A (en) * 2023-06-16 2023-09-12 国网黑龙江省电力有限公司营销服务中心 Household power load monitoring device
CN116741597B (en) * 2023-06-16 2024-01-09 国网黑龙江省电力有限公司营销服务中心 Household power load monitoring device

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