CN113133275B

CN113133275B - Electromechanical device overload protection system

Info

Publication number: CN113133275B
Application number: CN202110242769.4A
Authority: CN
Inventors: 方燕
Original assignee: Second Construction Co Ltd of China Construction First Group Co Ltd
Current assignee: Second Construction Co Ltd of China Construction First Group Co Ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2022-05-27
Anticipated expiration: 2041-03-05
Also published as: CN113133275A

Abstract

The invention discloses an electromechanical equipment overload protection system which comprises a shell, wherein a power supply is fixedly connected to the inner wall of one side of the shell, a spring is fixedly connected to the outer wall of the power supply, the other end of the spring is communicated with a machine box, the spring penetrates through one side wall of the machine box, a moving plate is fixedly connected to one end in the machine box, the moving plate is connected to the inner wall of the machine box in a sliding mode, a groove is formed in the top, away from the spring, of the moving plate, a sliding plate is connected into the groove in a matched mode, an accommodating groove matched with the sliding plate is formed in the inner wall, above the sliding plate, of the machine box, an electromagnet which is in conductive communication with the sliding plate is arranged at the top of the accommodating groove and the top of the sliding plate respectively, a conductor layer is arranged on the side wall, close to the spring, of the accommodating groove, and a conductive rotating block which is electrically connected with the conductor layer is arranged at the other side of the conductor layer. Has the advantages that: through establish ties into a radiator vane when overcurrent, reduce the operating current size, dispel the heat simultaneously, avoid reducing equipment life.

Description

Electromechanical device overload protection system

Technical Field

The invention relates to the technical field of electromechanical equipment, in particular to an overload protection system for electromechanical equipment.

Background

The electromechanical equipment generally refers to machinery, electrical equipment and electrical automation equipment, and in a building, the electromechanical equipment is generally called machinery and pipeline equipment except for earthwork, carpentry, reinforcing steel bars and muddy water. Different from hardware, the product can realize certain functions.

The electromechanical equipment generally comprises production equipment, information equipment, civil equipment and the like, wherein in the use of the production equipment and the information equipment, a plurality of electromechanical equipment are generally adopted to work simultaneously to realize the functions of production and information collection, and when the electromechanical equipment is used, the aging of an internal circuit or the overload of current can be caused under the condition of keeping the electrified working state for a long time, the self-detection processing cannot be carried out, so that the problems of short circuit or overcurrent and the like can be caused, and the use is influenced.

Disclosure of Invention

The invention aims to solve the problem that the electromechanical equipment in the prior art cannot self-process overload or short circuit when in use, and provides an electromechanical equipment overload protection system.

In order to achieve the purpose, the invention adopts the following technical scheme: an overload protection system for electromechanical equipment comprises a shell, wherein a power supply is fixedly connected to the inner wall of one side of the shell, a spring is fixedly connected to the outer wall of the power supply, the other end of the spring is communicated with a machine box, the spring penetrates through one side wall of the machine box, a movable plate is fixedly connected to one end in the machine box, the movable plate is connected to the inner wall of the machine box in a sliding mode, a groove is formed in the top, away from the spring, of the movable plate, a sliding plate is connected to the groove in a matched mode, the joint of the sliding plate and the groove is of an L-shaped structure, the part in the groove is larger than the part of the joint of the sliding plate and the groove, a containing groove matched with the sliding plate is formed in the inner wall of the machine box, the top of the containing groove and the top of the sliding plate are respectively provided with an electromagnet which is in conductive communication, and a conductor layer is arranged on the side wall, close to the spring, of the containing groove, the other side of the conductor layer is provided with a conductive rotating block electrically connected with the conductor layer;

the inner wall of machine box seted up with electrically conductive commentaries on classics piece complex runner, electrically conductive commentaries on classics piece passes through the torsional spring rotation with the runner and is connected, electrically conductive commentaries on classics piece bottom supports the pressure block that leads that has the wedge structure, conductor layer top electricity is connected with the connecting rod and the top of connecting rod runs through the roof of casing and one end outside is connected with radiator vane, the connecting rod cup joints the water box of fixing at shells inner wall outward, thereby be equipped with the atomizing piece in the water box and export the atomized water through radiator vane.

In the overload protection system for the electromechanical equipment, evaporative liquid is arranged on one side, away from the top wall of the set top box, of the sliding plate and on one side, away from the spring, of the moving plate, a guide rod penetrates through the bottom wall of the evaporative liquid part in the set top box in a sealing mode, a button is fixedly connected to one end, outside the shell, of the guide rod, and one end, in the set top box, of the guide rod is fixedly connected with the bottom of the sliding plate.

In the overload protection system for the electromechanical equipment, one side of the groove, which is close to the spring, is provided with a connecting layer electrically connected with the sliding plate, the connecting layer is electrically connected with a power supply through a wire embedded in the spring, the conductor layer is electrically connected with the radiating blades, the conductive rotating block is electrically connected with the power supply through a wire, and the side wall of the water box is hermetically connected with a water inlet pipe.

Compared with the prior art, the invention has the advantages that:

1. in the invention, when the over-current state occurs in the electromechanical equipment, the working current of the electromechanical equipment is reduced, and the current of the part is converted into the mechanical energy of the radiating blades, so that the load shedding and radiating effects on the electromechanical equipment are realized, and the overload protection function is realized;

2. when the power supply normally works, the power supply is connected with the sliding plate through a lead arranged in the spring and supplies power to the outside, and under the state, the temperature of the low-boiling-point evaporation liquid in the case is kept below the boiling point, so that one side of the sliding plate, which is positioned in the groove, is normally communicated with the power supply, and when an overcurrent state occurs, the low-boiling-point evaporation liquid absorbs heat and evaporates, so that the sliding plate moves upwards, and in the process, the groove has the effect of limiting the sliding plate to move horizontally;

3. the detection of the over-current state is met through the vertical movement of the sliding plate, namely when the circuit is unstable and the over-current state occurs for a short time, the evaporated liquid absorbs insufficient heat to evaporate to the state that the sliding plate is moved to the state that the two electromagnets are connected, so that the interference on the detection result is eliminated, and when the over-current state occurs for a period of time, the sliding plate is moved to the state that the two electromagnets are connected, then the conductor layer and the radiating blades are conducted, so that the power supply is additionally connected to the circuit in the radiating blades, the radiating effect on the shell is improved in the process of reducing the total current, on one hand, the over-current problem is avoided, and on the other hand, the thermal damage to the shell caused by high-temperature electric heat is avoided;

4. when the overcurrent degree is increased, the degree of the spring is increased because the evaporation liquid evaporates and compresses the moving plate, the resistance of the radiating fin connected to the power supply is increased, the total current is further reduced, and the power of the radiating fin is increased, so that the overcurrent solving method under different states is realized;

5. and when the overcurrent volume was not enough to solve through radiator vane's distribution current, the movable plate with compression spring to be connected with the pressure guide block to through pressure guide block with electrically conductive commentaries on classics piece and conductor layer disconnection, the circuit will keep the off-state to realize the effect of insulating outage this moment, avoid further causing the overcurrent damage, and after the cooling, thereby the slide will not realize the effect of conventional outage with the recess cooperation during electro-magnet disconnection, avoid reconnecting the circuit and lead to secondary damage.

6. When the radiating blades work, atomized airflow is output through the atomizing sheets in the water box, the absorbing capacity of heat around the equipment is improved, the wet dust settling effect is achieved, the working environment is improved, and the use is convenient.

Drawings

Fig. 1 is a schematic structural diagram of an electromechanical device overload protection system according to the present invention;

FIG. 2 is an enlarged schematic view of part A of an electromechanical device overload protection system according to the present invention;

fig. 3 is a circuit diagram of an overload protection system for an electromechanical device according to the present invention.

In the figure: the device comprises a shell 1, a power supply 2, a spring 3, a machine box 4, a movable plate 5, a sliding plate 6, an electromagnet 7, an accommodating groove 8, a groove 9, a conductor layer 10, a rotating groove 11, a conductive rotating block 12, a connecting rod 13, a water box 14, a water inlet pipe 15, a heat radiating blade 16, a guide rod 17, a button 18 and a pressure guide block 19.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

Examples

Referring to fig. 1-3, an overload protection system for electromechanical equipment comprises a housing 1, a power supply 2 is fixedly connected to the inner wall of one side of the housing 1, a spring 3 is fixedly connected to the outer wall of the power supply 2, the other end of the spring 3 is communicated with a casing 4, the spring 3 penetrates through one side wall of the casing 4, a moving plate 5 is fixedly connected to one end in the casing 4, the moving plate 5 is slidably connected to the inner wall of the casing 4, a groove 9 is formed in the top of the moving plate, which is far away from the spring 3, a sliding plate 6 is connected in the groove 9 in a matching manner, the joint of the sliding plate 6 and the groove 9 is set to be in an L-shaped structure, the part in the groove 9 is larger than the part at the joint of the sliding plate 6 and the groove 9, an accommodating groove 8 matched with the sliding plate 6 is formed in the inner wall of the casing 4, the top of the accommodating groove 8 and the top of the sliding plate 6 are respectively provided with an electromagnet 7 which is in conductive communication, a conductor layer 10 is arranged on the side wall of the accommodating groove 8 close to the spring 3, and a conductive rotating block 12 electrically connected with the conductor layer 10 is arranged on the other side of the conductor layer 10;

the inner wall of machine box 4 seted up with electrically conductive commentaries on classics piece 12 complex runner 11, electrically conductive commentaries on classics piece 12 is connected through the torsional spring rotation with runner 11, electrically conductive commentaries on classics piece 12 bottom supports the pressure guide piece 19 that has the wedge structure, conductor layer 10 top electricity is connected with connecting rod 13 and the top of connecting rod 13 runs through the roof of casing 1 and one end outside is connected with radiator vane 16, connecting rod 13 cup joints the water box 14 of fixing at the casing 1 inner wall outward, thereby be equipped with the atomizing piece in the water box 14 and export the atomized water through radiator vane 16, output through the atomizing air current, keep good humidity on the one hand, improve the surrounding environment of equipment through the wet process dust fall, on the other hand reduces the heat through water smoke, carry out good radiating effect to equipment.

One side of the top wall of the set top box 4 is far away from the sliding plate 6, one side of the moving plate 5 far away from the spring 3 is provided with evaporation liquid, a guide rod 17 penetrates through the bottom wall of the evaporation liquid part in the set top box 4 in a sealing mode, one end of the guide rod 17 outside the shell 1 is fixedly connected with a button 18, one end of the guide rod 17 in the set top box 4 is fixedly connected with the bottom of the sliding plate 6, one side, close to the spring 3, of the groove 9 is provided with a connecting layer electrically connected with the sliding plate 6, the connecting layer is electrically connected with the power supply 2 through a lead embedded inside the spring 3, when the groove 9 is not connected with the sliding plate 6, the power supply 2 is disconnected with an external equipment circuit, the conductor layer 10 is electrically connected with the radiating blades 16, the conductive rotating block 12 is electrically connected with the power supply 2 through a lead, and the side wall of the water box 14 is hermetically connected with a water inlet pipe 15.

With reference to the circuit diagram shown in fig. 3, in a normal state, the electromechanical device is connected to an external circuit through the wires in the power supply 2 and the spring 3 and the connection layers in the moving plate 5 and the groove 9, that is, the power supply is directly connected to a working circuit through the wires, so that the heat dissipation blades 16 are not connected to the circuit in the normal state, and for the whole device, the power supply of the power supply is completely converted into the work of the device, so as to maximize the working efficiency, and in the heat dissipation state, the heat dissipation blades 16 are connected to the circuit in series by realizing the switching similar to a bidirectional switch through the structure, and the voltage distributed by the heat dissipation blades 16 is increased along with the increase of the connection resistance, so that the varistor effect is realized, and the connection between the conductive rotation block 12 and the conductive layer 10 is similar to a single-gate switch, so as to achieve the connection or disconnection effect, and the specific working conditions are as described below;

when the overcurrent occurs due to overload, micro short circuit or other circuit problems, at this time, because the current magnitude is large, the electric heat at the connection part of the groove 9 and the moving plate 5 heats the evaporated liquid with a low boiling point at one side of the moving plate 5 to a state with a high temperature, under this state, a large pressure is generated on the upper sliding plate 6, so that the sliding plate 6 is pressed to rise, when the overcurrent state is only a transient state, that is, the overcurrent state disappears after a short time, the electric heat generated by the overcurrent will not be enough to heat the evaporated liquid to a state of instant vaporization of bumping, that is, the sliding plate 6 will not be pressed to rise to a state of electrically connecting the two electromagnets 7, at this time, the connection of the circuit will not be affected, and when the overcurrent state is not an instant state, at this time, the heating time of the evaporated liquid is long, the upward pressure applied to the sliding plate 6 will drive the sliding plate 6 to be connected with the electromagnets 7 at the top of the case 4, in this state, the circuit is switched, the heat dissipation blades 16 are connected into the circuit through the conductor layer 10, and the moving plate 5 loses the limiting effect of the sliding plate 6, so that the horizontal direction extrusion spring 3 can move;

after the circuit is switched, the power supply is connected with the radiating blades in series except for the working circuit, so that the total resistance of the power supply rises, the current drops, and the over-current state is relieved, and the higher electric heat generated by the equipment in the over-current state is quickly dissipated through the work of the radiating blades 16, so that the aging of the shell of the equipment is avoided, and the larger the over-current state is, the larger the displacement of the compression spring 3 of the sliding plate 6 is, the larger the resistance value of the conductor layer 10 connected with the power supply 2 is, the smaller the working current is, and the larger the current distributed by the radiating blades is, so that different adjusting methods are better realized according to the current amount;

when extreme current, namely large-amplitude short-circuit current, occurs, the current magnitude is increased rapidly at the moment, so that great damage is caused to equipment, in the invention, the evaporating liquid enables the sliding plate 6 to be compressed to the maximum compression position of the spring 3 under the heating action of the extreme current, so that pressure to the conductive pressing block 19 is generated, the conductive pressing block 19 is pressed to generate pressure to the conductive rotating block 12, the conductive pressing rotating block 12 is separated from being connected with the conductor layer 10, the power supply is disconnected with the equipment, the instantaneous power-off effect is achieved, at the moment, the electromagnet 7 is powered off, the sliding block 6 falls down again, the sliding block 6 is not matched with the groove 9 at the state, after the evaporating liquid returns to a normal value, the spring 3 returns to the original state, the conductive rotating block 12 is connected with the conductor layer 10 again, at the moment, the circuit is still disconnected as the groove 9 is not connected with the sliding plate 6, and after the overhaul is finished, by pushing the button, the sliding plate 6 moves upwards and is matched and connected with the groove 9 again, so that the effect of recovering the power-on can be realized, and the automatic detection and disconnection device has the characteristics of self-detection and self-disconnection.

Although the terms of the housing 1, the power source 2, the spring 3, the case 4, the moving plate 5, the sliding plate 6, the electromagnet 7, the receiving groove 8, the groove 9, the conductor layer 10, the rotating groove 11, the conductive rotating block 12, the connecting rod 13, the water box 14, the water inlet pipe 15, the heat dissipating blade 16, the guide rod 17, the button 18, the pressure guiding block 19, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The electromechanical equipment overload protection system comprises a shell (1) and is characterized in that a power supply (2) is fixedly connected to the inner wall of one side of the shell (1), a spring (3) is fixedly connected to the outer wall of the power supply (2), a machine box (4) is communicated with the other end of the spring (3), the spring (3) penetrates through one side wall of the machine box (4), a movable plate (5) is fixedly connected to one end of the machine box (4), the movable plate (5) is connected to the inner wall of the machine box (4) in a sliding mode, a groove (9) is formed in the top, far away from the spring (3), of the movable plate, a sliding plate (6) is connected to the groove (9) in a matching mode, the joint of the sliding plate (6) and the groove (9) is of an L-shaped structure, and the part, in the groove (9), of the sliding plate is larger than the part, at the joint of the sliding plate (6) and the groove (9), an accommodating groove (8) matched with the sliding plate (6) is formed in the inner wall, located above the sliding plate (6), of the machine box (4), an electromagnet (7) which is in conductive communication is arranged at the top of the accommodating groove (8) and the top of the sliding plate (6) respectively, a conductor layer (10) is arranged on the side wall, close to the spring (3), of the accommodating groove (8), and a conductive rotating block (12) which is electrically connected with the conductor layer (10) is arranged on the other side of the conductor layer (10);

the inner wall of the machine box (4) is provided with a rotating groove (11) matched with the conductive rotating block (12), the conductive rotating block (12) is rotatably connected with the rotating groove (11) through a torsion spring, the bottom of the conductive rotating block (12) is abutted against a pressure guide block (19) with a wedge-shaped structure, the top of the conductor layer (10) is electrically connected with a connecting rod (13), the top of the connecting rod (13) penetrates through the top wall of the shell (1), one outer end of the connecting rod is connected with a radiating blade (16), a water box (14) fixed on the inner wall of the shell (1) is sleeved outside the connecting rod (13), and an atomizing sheet is arranged in the water box (14) so as to output atomized water through the radiating blade (16);

one side that spring (3) were kept away from in machine box (4) roof was kept away from in slide (6), movable plate (5) is provided with the evaporation liquid, the diapire of evaporation liquid part is sealed to run through and is equipped with guide arm (17) in machine box (4), guide arm (17) one end fixedly connected with button (18) outside casing (1), the bottom fixed connection of guide arm (17) one end and slide (6) in machine box (4).

2. The overload protection system for the electromechanical equipment according to claim 1, wherein a connecting layer electrically connected with the sliding plate (6) is arranged on one side of the groove (9) close to the spring (3) and is electrically connected with the power supply (2) through a conducting wire embedded in the spring (3), the conductor layer (10) is electrically connected with the radiating blades (16) and the conductive rotating block (12) is electrically connected with the power supply (2) through a conducting wire, and a water inlet pipe (15) is hermetically connected with the side wall of the water box (14).