CN218352159U

CN218352159U - Automatic power-off device for power construction

Info

Publication number: CN218352159U
Application number: CN202222350889.9U
Authority: CN
Inventors: 吴迪; 田婧; 薛锦; 谢兆晖; 徐国栋
Original assignee: Hongtao Electric Power Construction Yunnan Group Co ltd
Current assignee: Hongtao Electric Power Construction Yunnan Group Co ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2023-01-20
Anticipated expiration: 2032-09-05

Abstract

The utility model provides an electric power construction auto-power-off device, the power distribution box comprises a device box body, the entrance hole has been seted up to device box upper end, and the upper end of device box installs the alarm, and the fan is installed on the next door of alarm, and the fresh air inlet has been seted up to the right side wall of device box, and the outer end welding of fresh air inlet has the dust-proof box, the inside welding of dust-proof box has the metal mesh enclosure, and the inside grafting of metal mesh enclosure has air filter, and air filter's outer end bonds and has the fixture block, the outer end welding of fixture block has the connecting rod, and the medial extremity welding of connecting rod has the inserted bar, the inside in entrance hole is provided with three phase power line, and the power cord is connected to the air switch of the inside of device box. The utility model provides a power-off protection device that relates to in the background art can not carry out the power-off protection to proruption electric shock or the electric leakage condition, and outside dust easy access device inside, influence its operation and radiating problem.

Description

Automatic power-off device for power construction

Technical Field

The utility model relates to a construction technical field, concretely relates to electric power construction auto-power-off device.

Background

The power-off protection function means that the switching device can store the final channel switching command when working normally, and when power is off due to an emergency, the device still stores the command, and the device automatically restores to the original switching state after power is on.

Utility patent of current application No. CN202121106778.2 discloses a device with auto-power-off protection function, including box body, fixed block and perforation, the equal fixed mounting in the left and right sides of box body has the fixed block, and the fixed surface of fixed block installs the perforation, and the equal fixed mounting in upper end of fixed block has the heat dissipation window, and the fixed surface of box body installs the fixed plate. The utility model overcomes prior art's is not enough, through being provided with the controller, connecting wire and circuit breaker, when in actual use, with the electric wire access need automatic power-off protection on device or the circuit, control through control button makes the device start, when the device starts, can control the adjustment through control button and regularly cut off the power supply, after the setting is accomplished, when having arrived the time of settlement, the controller can send out the instruction automatically, cut off the power supply with the electric wire through connecting wire control circuit breaker, it is very convenient to operate, the work efficiency is improved, be favorable to in-service use.

Although the power-off protection device related to the above patent realizes the functions of automatic power-off protection and heat dissipation, there are still some disadvantages:

the device in use starts the power-off protection function according to the timer, but has the emergency of electrocution or electric leakage in the process of power construction, leads to regularly cutting off the power supply and can't play protect function, secondly, dispels the heat through heat dissipation window and fan, leads to inside outside dust gets into the device through the heat dissipation window easily, and long-term accumulation adheres to on inside electrical components surface, influences its heat dissipation and operation.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, an automatic power-off device for power construction is provided so as to solve the problems that the power-off protection device related in the background art cannot perform power-off protection on sudden electric shock or electric leakage conditions, and external dust easily enters the device to influence the operation and heat dissipation of the device.

In order to achieve the above object, there is provided an automatic power-off device for power construction, comprising:

the device box, the entrance hole has been seted up to device box upper end, and the upper end of device box installs the alarm, and the fan is installed on the next door of alarm, and the fresh air inlet has been seted up to the right side wall of device box, and the outer end welding of fresh air inlet has the dust box, the inside welding of dust box has the metal screen panel, and the inside grafting of metal screen panel has air filter, and air filter's outer end bonds there is the fixture block, the outer end welding of fixture block has the connecting rod, and the medial extremity welding of connecting rod has the inserted bar, the inside in entrance hole is provided with the three-phase power cord, and the power cord is connected to the air switch of the inside of device box, air switch's downside is provided with three-phase electric collector, central processing unit, signal conditioner and wireless communicator.

Furthermore, the three-phase electric collector, the central processing unit, the signal conditioner and the wireless communicator are all fixed inside the device box body through bolts, and the three-phase electric collector, the signal conditioner and the air switch are all electrically connected.

Further, the inside of device box still installs earth-leakage protector, and earth-leakage protector all establishes to electric connection for air switch and central processing unit, and central processing unit and wireless communicator and alarm all establish to electric connection.

Furthermore, an air outlet is formed in the upper end shell of the device box body, and the fan is fixedly installed at the upper end of the air outlet through a bolt.

Further, the metal mesh enclosure sets up to inside hollow conical structure, and air filter sets up to the solid cone structure of filtration cotton material to air filter pegs graft the back with the metal mesh enclosure, and the fixture block is located the outside of dust proof box.

Furthermore, the connecting rod and the inserted bar are welded to form an L-shaped structure, the L-shaped structure is symmetrical about the center of the clamping block, and the inserted bar is inserted into the wall of the dustproof box in a sliding mode.

The utility model has the advantages of that, the utility model discloses an electric power construction automatic power-off device utilizes three-phase electricity collector accessible to add the mode that the direct current detected to three-phase electricity to detect leakage current, and the signal conditioner can adopt RC filter circuit, and pi type filter circuitization or wave filter U2 carry out signal filtering and handle, strengthens the accurate detection of electric leakage and electric shock short circuit current, then through central processing unit, earth-leakage protector, wireless communicator and alarm for under the circumstances of the timely outage of control, send simultaneously warning and communication signal, be convenient for in time overhaul and investigate; utilize fan, exhaust vent and fresh air inlet, be convenient for at the inside air that forms the circulation of device box, and then be convenient for discharge inside heat, simultaneously through the inside metal mesh enclosure of dust proof box, air filter and fixture block, be convenient for filter inspiratory air, and then prevent inside the dust entering device box.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a device box body according to an embodiment of the present invention.

Fig. 2 is the schematic view of the internal structure of the device case according to the embodiment of the present invention.

Fig. 3 is a schematic diagram of the power-off control principle according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a position a in fig. 2 according to an embodiment of the present invention.

1. A device case; 2. a wire inlet hole; 3. an alarm; 4. a fan; 5. a dust-proof box; 6. a wireless communicator; 7. a signal conditioner; 8. a central processing unit; 9. a three-phase electricity collector; 10. an air switch; 11. an air outlet; 12. a leakage protector; 13. an air inlet hole; 14. a metal mesh enclosure; 15. an air filter element; 16. a clamping block; 17. a connecting rod; 18. and (4) inserting the rod.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can be implemented or applied by other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

Fig. 1 is the utility model discloses device box spatial structure schematic diagram, fig. 2 are the utility model discloses device box inner structure schematic diagram, fig. 3 are the utility model discloses the power off control principle schematic diagram of embodiment, fig. 4 do the utility model discloses a A department's structure schematic diagram in fig. 2 of the embodiment.

Referring to fig. 1 to 4, the utility model provides an electric power construction automatic power-off device, include: the device comprises a device box body 1 and a dust-proof box 5.

Specifically, entrance hole 2 has been seted up to device box 1 upper end, and alarm 3 is installed to the upper end of device box 1, fan 4 is installed on the next door of alarm 3, fresh air inlet 13 has been seted up to the right side wall of device box 1, and the outer end welding of fresh air inlet 13 has dust-proof box 5, the inside welding of dust-proof box 5 has metal mesh enclosure 14, and metal mesh enclosure 14's inside is pegged graft and is had air filter 15, air filter 15's outer end bonds and has fixture block 16, the outer end welding of fixture block 16 has connecting rod 17, and the medial extremity welding of connecting rod 17 has inserted bar 18, the inside in entrance hole 2 is provided with three-phase power cord, and the power cord is connected to the air switch 10 of the inside of device box 1, air switch 10's downside is provided with three-phase electricity collector 9, central processing unit 8, signal conditioner 7 and wireless communicator 6.

In this embodiment, the three-phase power collector 9 is set as an HC-33a collector, the signal conditioner 7 is set as a CM3616, and the wireless communicator 6 is set as a communication module of an RS232 serial interface.

The outer end of the fan 4 is provided with a cylinder which is welded on the top of the device box body 1, and the fan 4 is arranged inside the cylinder.

The three-phase electricity collector 9, the central processing unit 8, the signal conditioner 7 and the wireless communicator 6 are all fixed inside the device box body 1 through bolts, and the three-phase electricity collector 9, the signal conditioner 7 and the air switch 10 are all electrically connected; the inside of the device box 1 is also provided with a leakage protector 12, the leakage protector 12 is electrically connected with the air switch 10 and the central processor 8, the wireless communicator 6 and the alarm 3 are electrically connected.

Specifically, the leakage current is detected by the three-phase current collector 9 through a mode of detecting the additional direct current of the three-phase current, the signal conditioner 7 can adopt an RC filter circuit, a pi-type filter circuit or a filter U2 to carry out signal filtering processing, and the accurate detection of the leakage current and the electric shock short-circuit current is enhanced.

The wireless communicator 6 is convenient to be connected with a mobile terminal of a mobile phone and can find the situation in time.

An air outlet 11 is formed in the upper end shell of the device box body 1, and the fan 4 is fixedly installed at the upper end of the air outlet 11 through a bolt.

Metal mesh enclosure 14 sets up to inside hollow conical structure, and air filter 15 sets up to the solid cone structure of the cotton material of filtration to after air filter 15 and metal mesh enclosure 14 pegged graft, fixture block 16 is located the outside of dust proof box 5, and the honeycomb hole has been seted up to fixture block 16 inside.

In this embodiment, the air filter element 15 is inserted into the metal mesh enclosure 14, so as to facilitate replacement of the air filter element 15 after long-term use.

The connecting rod 17 and the inserting rod 18 are welded to form an L-shaped structure, the L-shaped structure is centrosymmetric with respect to the clamping block 16, and the inserting rod 18 is inserted in the wall of the dustproof box 5 in a sliding mode.

In the present embodiment, the position of the latch 16 is easily defined by the connecting rod 17 and the inserting rod 18.

The utility model discloses an electric power construction automatic power-off device can effectively solve the power-off protection device that relates to in the background art and can not carry out the outage protection to proruption electric shock or electric leakage condition, and external dust easily gets into the device inside, influence its operation and radiating problem, utilize three-phase electricity collector accessible to add the mode that the direct current detected to three-phase electricity to detect leakage current, the signal conditioner can adopt RC filter circuit, pi type filter circuit ization or wave filter U2 carry out signal filtering and handle, strengthen the accurate detection of electric leakage and electric shock short-circuit current, then through central processing unit, earth-leakage protector, wireless communicator and alarm, make under the condition of the timely outage of control, send warning and communication signal simultaneously, be convenient for in time overhaul and investigation; utilize fan, exhaust vent and fresh air inlet, be convenient for at the inside air that forms the circulation of device box, and then be convenient for discharge inside heat, simultaneously through the inside metal mesh enclosure of dust proof box, air filter and fixture block, be convenient for filter inspiratory air, and then prevent inside the dust entering device box.

Claims

1. The utility model provides an electric power construction auto-power-off device which characterized in that includes: the device box body (1), entrance hole (2) have been seted up to device box body (1) upper end, and install alarm (3) in the upper end of device box body (1), and fan (4) are installed to the next door of alarm (3), and fresh air inlet (13) have been seted up to the right side wall of device box body (1), and the outer end welding of fresh air inlet (13) has dust proof box (5), the inside welding of dust proof box (5) has metal mesh enclosure (14), and the inside grafting of metal mesh enclosure (14) has air filter (15), and the outer end of air filter (15) bonds and has fixture block (16), the outer end welding of fixture block (16) has connecting rod (17), and the medial extremity welding of connecting rod (17) has inserted bar (18), the inside of entrance hole (2) is provided with three-phase power cord, and the power cord is connected to air switch (10) of the inside of device box body (1), the downside of air switch (10) is provided with three-phase electric collector (9), central processing unit (8), signal conditioner (7) and wireless communicator (6).

2. The automatic power-off device for power construction as claimed in claim 1, wherein the three-phase power collector (9), the central processing unit (8), the signal conditioner (7) and the wireless communicator (6) are all fixed inside the device box body (1) through bolts, and the three-phase power collector (9), the signal conditioner (7) and the air switch (10) are all electrically connected.

3. The automatic power-off device for power construction as claimed in claim 1, wherein a leakage protector (12) is further installed inside the device box body (1), the leakage protector (12) is electrically connected with the air switch (10) and the central processor (8), and the central processor (8) is electrically connected with the wireless communicator (6) and the alarm (3).

4. The automatic power-off device for power construction as claimed in claim 1, wherein an air outlet (11) is formed in an upper end housing of the device case (1), and the fan (4) is fixedly mounted at the upper end of the air outlet (11) through a bolt.

5. The automatic power-off device for power construction as claimed in claim 1, wherein the metal mesh enclosure (14) is configured as a hollow conical structure, the air filter element (15) is configured as a solid conical structure made of air filter cotton, and after the air filter element (15) is inserted into the metal mesh enclosure (14), the fixture block (16) is located outside the dust-proof box (5), and the honeycomb holes are formed inside the fixture block (16).

6. The automatic power-off device for power construction as claimed in claim 1, wherein the connecting rod (17) and the inserting rod (18) are welded to form an L-shaped structure, the L-shaped structure is symmetrical with respect to the center of the clamping block (16), and the inserting rod (18) is slidably inserted into the wall of the dust-proof box (5).