CN111403243A - Emergency cut-off device - Google Patents
Emergency cut-off device Download PDFInfo
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- CN111403243A CN111403243A CN202010509828.5A CN202010509828A CN111403243A CN 111403243 A CN111403243 A CN 111403243A CN 202010509828 A CN202010509828 A CN 202010509828A CN 111403243 A CN111403243 A CN 111403243A
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- heat dissipation
- circuit
- protection
- plate
- insulating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/52—Cooling of switch parts
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
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Abstract
The invention discloses an emergency cut-off device, which comprises a protection bottom shell and a protection upper cover, wherein a circuit breaker is arranged between the protection bottom shell and the protection upper cover and comprises two insulating stand columns arranged on the protection bottom shell, the upper ends of the insulating stand columns are provided with electric contacts connected with two transmission wires, an electric conduction plate is arranged between the two electric contacts, and the protection bottom shell and the protection upper cover are provided with circuit cut-off reset mechanisms for circularly realizing circuit cut-off and circuit switch-on; the protective bottom shell and the protective upper cover are both provided with heat dissipation assemblies, the heat dissipation assemblies realize sealing under the action of powering off the current-conducting plate lifted by the circuit cutting reset mechanism, and the heat dissipation assemblies realize heat dissipation and temperature reduction under the action of powering on the current-conducting plate pushed down by the circuit cutting reset mechanism; this scheme produces outage electric arc when avoiding cutting off conveying circuit, and the life of extension emergency cut-off device realizes the cooling heat dissipation through the thermovent that a plurality of setups, and the thermovent is sealed completely simultaneously and is realized the self-protection.
Description
Technical Field
The invention relates to the technical field of circuit protection, in particular to an emergency cut-off device.
Background
In the generation, transmission and use of electricity, power distribution is an extremely important link. The distribution system comprises a transformer and various high-low voltage electrical equipment, and the low-voltage circuit breaker is an electrical appliance with a large using amount.
The emergency cutoff device is a switching device capable of closing, carrying, and opening a current under a normal circuit condition and closing, carrying, and opening a current under an abnormal circuit condition within a predetermined time. The circuit breaker is divided into a high-voltage circuit breaker and a low-voltage circuit breaker according to the application range, the boundary line of the high voltage and the low voltage is divided more clearly, the circuit breaker is generally called as a high-voltage electrical appliance with the voltage of more than 3kV, an emergency cut-off device can be used for distributing electric energy, an asynchronous motor is not frequently started, a power supply circuit, the motor and the like are protected, when the circuit breaker generates serious overload or short circuit, undervoltage and other faults, the circuit breaker can automatically cut off the circuit, and the function of the circuit breaker is equivalent to the combination of a fuse.
The existing low-pressure layer emergency cut-off device has the following defects:
1. when the power is cut off, the power-off electric arc is easy to appear, and the use safety and the service life of the emergency cut-off device are influenced;
2. in order to avoid the damage of elements in the emergency cut-off device caused by circuit faults, the emergency cut-off device is designed into a totally-enclosed shell structure, and for the emergency cut-off device with the networking function, heat generated by electronic elements cannot be dissipated in time, so that the internal elements of the emergency cut-off device are easily burnt out, and the service life of the emergency cut-off device is influenced.
Disclosure of Invention
Therefore, the invention provides an emergency cut-off device, which aims to solve the problems that the use safety of the emergency cut-off device is influenced by the easy occurrence of power-off electric arc in the prior art, and for the emergency cut-off device with a networking function, heat generated by electronic components cannot be timely dissipated, and the service life of the internal components of the emergency cut-off device is influenced by the easy burning of the internal components.
In order to achieve the above object, an embodiment of the present invention provides the following:
an emergency cut-off device comprises a protection bottom shell and a protection upper cover, wherein a circuit breaker is arranged between the protection bottom shell and the protection upper cover and comprises two insulating stand columns arranged on the protection bottom shell, the upper ends of the insulating stand columns are provided with electric contacts connected with two transmission wires, a current conducting plate is arranged between the two electric contacts, and the protection bottom shell and the protection upper cover are provided with circuit cut-off reset mechanisms used for circularly realizing circuit cut-off and circuit switch-on;
the protection drain pan with the protection upper cover all is provided with radiator unit, radiator unit is in circuit cuts off canceling release mechanical system and lifts the effect of current conducting plate outage realizes sealed down, and radiator unit pushes down at circuit cuts off canceling release mechanical system the effect of current conducting plate circular telegram is realized the heat dissipation cooling down.
As a preferable scheme of the present invention, the circuit cutting reset mechanism includes an electromagnet disposed on the protection upper cover and configured to attract the conductive plate to move up and down, the electromagnet is connected in a conduction circuit, an electrical button is mounted on the conduction circuit, a processing chip for receiving a result of processing data monitored by a server on the transmission circuit is mounted on the protection upper cover, the processing chip controls opening and closing of the electrical button to disconnect and connect the electromagnet, and the electromagnet drives the conductive plate to lift up to cut off the transmission wire in an emergency when being electrified.
As a preferable scheme of the present invention, the circuit breaking reset mechanism further includes an extension spring installed on an inner wall of the protection bottom case and used for driving the conductive plate to reset, a telescopic insulating plate for insulating and isolating the two electrical contacts is installed on a side edge of the extension spring, the extension spring is in a stretched state under a lifting action of the conductive plate, and a limiting rope connected between the protection bottom case and the telescopic insulating plate is arranged inside the extension spring.
As a preferred scheme of the present invention, two parallel side plates of the conductive plate are respectively provided with a translation rod, and the inner side of the translation rod is provided with a sleeve ring sleeved on the insulating upright post to move up and down, the translation rod is provided with an open slot for two transmission wires to pass through, and the conductive plate drives the translation rod to move up and down synchronously.
As a preferable scheme of the invention, the telescopic insulating plate comprises a first-order hollow insulating plate installed on the extension spring and a second-order retractable insulating plate inserted in the first-order hollow insulating plate, the inner end of the second-order retractable insulating plate is connected with the inner end of the first-order hollow insulating plate through a compression spring, the side section of the second-order retractable insulating plate is in a right trapezoid shape, and the length of the upper side of the second-order retractable insulating plate is greater than the length of the lower side of the second-order retractable insulating plate.
In a preferred embodiment of the present invention, the length of the second-order retractable insulating plate is less than the distance between the side edge of the tension spring and the inner side edge of one of the insulating posts, and the sum of the extended length of the second-order retractable insulating plate and the length of the first-order hollow insulating plate is greater than the length of the conductive plate.
As a preferable scheme of the present invention, the extension spring is fixedly adhered to the conductive plate, after the electromagnet is powered off, the extension spring drives the second-order shrinkage moving insulating plate to move down and shrink toward the inside of the first-order hollow insulating plate due to its own rebound force, and the conductive plate connects the two electrical contacts to realize automatic power supply of the transmission wire.
As a preferred aspect of the present invention, the heat dissipation assembly includes a heat dissipation area disposed on the protection upper cover and the protection bottom shell, an arc-shaped arch surface is disposed at a central position of the heat dissipation area of the protection upper cover and a central position of the heat dissipation area of the protection bottom shell, the heat dissipation area of the protection upper cover is provided with a plurality of heat dissipation holes uniformly distributed, and a heat dissipation air valve is disposed between the heat dissipation area of the protection bottom shell and the arc-shaped arch surface.
As a preferred scheme of the present invention, the upper end of the translation rod is connected with a heat conducting silicon chip for sealing the heat dissipation hole, the lower end of the translation rod is provided with a lifting wire rope which passes through the heat dissipation area of the protection bottom case and is connected with the heat dissipation valve, when the current conducting plate drives the translation rod to move up synchronously, the heat conducting silicon chip at the upper end of the translation rod blocks the heat dissipation hole, and the heat dissipation valve at the lower end of the translation rod blocks the heat dissipation area of the protection bottom case.
As a preferable scheme of the present invention, the extension spring is independent from the conductive plate, the arc-shaped arch surface of the protective bottom shell is provided with two threading holes, the lower ends of the two first-order hollow insulating plates are provided with reset pull ropes penetrating through the two threading holes, the reset pull ropes in the two threading holes are pulled down to drive the first-order hollow insulating plates and the second-order shrinkage insulating plates to move down, the second-order shrinkage insulating plates shrink into the first-order hollow insulating plates under the action of the gears of the insulating columns, and the conductive plate realizes manual power supply to the transmission wires after the electromagnet is switched off.
The embodiment of the invention has the following advantages:
(1) according to the invention, the insulation penetration-proof body is additionally arranged between the two contacts of the conveying circuit, so that a power-off electric arc generated when the conveying circuit is cut off is avoided, and the service life of the emergency cut-off device is prolonged;
(2) the emergency cut-off device is equivalent to a switch, when the circuit is normally connected, the emergency cut-off device is cooled and radiated through a plurality of arranged heat radiating ports, and when the circuit needs to be cut off emergently, the emergency cut-off device completely seals the heat radiating ports to realize self protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is an overall configuration diagram of an emergency cut-off device in an embodiment of the present invention;
FIG. 2 is a schematic view of a closed heat dissipation assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of an installation structure of a translation rod according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of the manual reset of the reset rope according to the embodiment of the present invention.
In the figure:
1-protecting the bottom shell; 2-protecting the upper cover; 3-insulating upright posts; 4-electrical contacts; 5-a conductive plate; 6-circuit cut-off reset mechanism; 7-a heat dissipation assembly; 8-a translation bar; 9-a collar; 10-open slots; 11-a heat-conducting silicon wafer; 12-pulling the steel wire rope; 13-threading holes; 14-a reset pull rope;
601-an electromagnet; 602-electrical button; 603-processing the chip; 604-a tension spring; 605-a telescopic insulating plate; 606-a spacing rope;
6051-first order hollow insulator plate; 6052-second order shrink moving insulation board; 6053-compression spring;
701-a heat dissipation area; 702-an arcuate surface; 703-heat dissipation holes; 704-Heat dissipation damper.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
As shown in fig. 1 and 3, the present invention provides an emergency cut-off device, which is configured to emergency cut off a transmission circuit to avoid a larger loss when data collected by a circuit monitoring system is abnormal, and an insulation penetration preventing body is added between two contacts of the transmission circuit to avoid a power-off arc generated when the transmission circuit is cut off, so as to prolong a service life of the emergency cut-off device.
The emergency cut-off device comprises a protection bottom shell 1 and a protection upper cover 2, a circuit breaker is arranged between the protection bottom shell 1 and the protection upper cover 2 and comprises two insulation upright posts 3 arranged on the protection bottom shell 1, the upper ends of the insulation upright posts 3 are provided with electric contacts 4 connected with two transmission lines, two electric conductive plates 5 are arranged between the electric contacts 4, and the protection bottom shell 1 and the protection upper cover 2 are provided with a circuit cut-off reset mechanism 6 used for realizing circuit cut-off and circuit switch-on in a circulating mode.
The protection drain pan 1 with the protection upper cover 2 all is provided with radiator unit 7, radiator unit 7 is in circuit cuts off canceling release mechanical system 6 and lifts the effect of current-failure of current conducting plate 5 realizes sealed, and radiator unit 7 pushes down at circuit cuts off canceling release mechanical system 6 the effect of current conducting plate 5 circular telegram realizes the heat dissipation cooling down.
The circuit cutting-off reset mechanism 6 comprises an electromagnet 601 which is arranged on the protection upper cover 2 and used for adsorbing the conducting plate 5 to move up and down, the electromagnet 601 is connected in a conducting circuit, an electric button 602 is installed on the conducting circuit, a processing chip 603 used for receiving a server to a monitoring data processing result of the conveying circuit is installed on the protection upper cover 2, the processing chip 603 is controlled to open and close the electric button 602 to achieve the disconnection and communication of the electromagnet 601, and the electromagnet 601 drives the conducting plate 5 to lift up to cut off the conveying wire in an emergency mode when being electrified.
Specifically, when the server calculates that the monitoring data of the conveying circuit is abnormal, an instruction for electrifying the electromagnet 601 is sent out, the instruction is sent to the processing chip 603 through the wireless communication unit, the processing chip 603 controls the electrical buttons 602 to be combined, the conduction circuit is connected to supply power to the electromagnet 601, and the electromagnet 601 is electrified to drive the conductive plate 5 to lift up to cut off the conveying wire in an emergency manner.
When the server calculates that the monitoring data of the conveying circuit is in a normal range, an instruction for powering off the electromagnet 601 is sent out, the instruction is sent to the processing chip 603 through the wireless communication unit, the processing chip 603 controls the electric button 602 to be opened, the conducting circuit is disconnected to stop supplying power to the electromagnet 601, and the conducting plate 5 is connected with the two electric contacts 4 to be connected with the conveying wire.
The concrete realization structure and principle that the conducting plate 5 is communicated with the two electric contacts 4 to be connected with the transmission wire are as follows: the circuit cutting reset mechanism 6 further comprises an extension spring 604 which is installed on the inner wall of the protective bottom case 1 and used for driving the conductive plate 5 to reset, a telescopic insulating plate 605 which is used for insulating and isolating the two electric contacts 4 is installed on the side edge of the extension spring 604, the extension spring 604 is in a reset state under the lifting action of the conductive plate 5, and a limiting rope 606 which is connected between the protective bottom case 1 and the telescopic insulating plate 605 is arranged inside the extension spring 604.
That is, when the conductive plate 5 connects two electrical contacts 4, the transmission wire is connected and conducted, the conductive plate 5 compresses the extension spring 604 downward, and when the conductive plate 5 lifts up to disconnect two electrical contacts 4, the transmission wire is cut off to protect in time, the extension spring 604 is reset from the compressed state, the telescopic insulating plate 605 covers the two electrical contacts 4 to avoid generating power-off arc, and the extension spring 604 can only change from the compressed state to the normal reset state under the action of the limiting rope 606.
The telescopic insulating plate 605 comprises a first-order hollow insulating plate 6051 arranged on the extension spring 604 and an insulating plate 6052 inserted in a second-order shrinkage mode inside the first-order hollow insulating plate 6051, the inner end of the second-order shrinkage mode insulating plate 6052 is connected with the inner end of the first-order hollow insulating plate 6051 through a compression spring 6053, the side section of the second-order shrinkage mode insulating plate 6052 is in a right trapezoid shape, the upper edge length of the second-order shrinkage mode insulating plate 6052 is greater than the lower edge length of the second-order shrinkage mode insulating plate 6052.
The length of the second-order retractable insulating plate 6052 is less than the distance between the side of the tension spring 604 and the inner side of one of the insulating columns 3, and the sum of the extended length of the second-order retractable insulating plate 6052 and the length of the first-order hollow insulating plate 6051 is greater than the length of the conductive plate 5.
The extension spring 604 is fixedly adhered to the conductive plate 5, after the electromagnet 601 is powered off, the extension spring 604 drives the second-order shrinkage insulation plate 6052 to move downwards and shrink towards the inside of the first-order hollow insulation plate 6051 due to the rebound force of the extension spring 604, and the conductive plate 5 is connected with two electric contacts 4 to realize automatic power supply of a transmission wire.
One implementation of the emergency cutoff device of the present embodiment will be specifically described in conjunction with the turning-on operation of the conductive plate 5:
1. when the electromagnet 601 is electrified, the conducting plate 5 is attracted by the electromagnet 601 to move upwards, the two electric contacts 4 are disconnected, the transmission circuit is cut off emergently, the conducting plate 5 drives the extension spring 604 to move upwards at the same time, the extension spring 604 is changed from a natural state to a tensile state, the second-order moving insulating plate 6052 is compressed in the first-order hollow insulating plate 6051 under the limiting action of the insulating upright post 3 to move upwards synchronously, and when the second-order moving insulating plate 6052 reaches the upper end of the insulating upright post 3, the second-order moving insulating plate 6052 is unfolded from the first-order hollow insulating plate 6051 to connect the two electric contacts 4 in an insulating way, so that the occurrence of power.
2. When the electromagnet 601 is powered off, the electromagnet 601 no longer has adsorption capacity on the conductive plate 5, the conductive plate 5 moves down under the action of gravity, the two electric contacts 4 are connected, the transmission circuit is reconnected, the extension spring 604 moves down synchronously under the action of the own rebound force and the conductive plate 5, the extension spring 604 changes from the extension state to the natural state, the second-order shrinkage insulation plate 6052 is compressed in the first-order hollow insulation plate 6051 under the limiting action of the insulation upright post 3 and moves down along the surface of the insulation upright post 3, and the insulation effect of the electric contacts 4 is separated.
Two parallel curb plates of current conducting plate 5 are equipped with a translation pole 8 respectively, and the inboard of translation pole 8 is equipped with the cover and establishes the lantern ring 9 that insulating stand 3 reciprocated, be equipped with on the translation pole 8 and supply two the open slot 10 that the transfer wire passed, lantern ring 9 supplementary current conducting plate 5 vertical motion from top to bottom, simultaneously current conducting plate 5 drives translation pole 8 reciprocates in step, and translation pole 8 is closely relevant with radiator unit 7's working method.
As shown in fig. 2, the heat dissipation assembly 7 includes a heat dissipation area 701 disposed on the protection upper cover 2 and the protection bottom case 1, an arc-shaped arch surface 702 is disposed at a center position of the heat dissipation area 701 of the protection upper cover 2 and a center position of the heat dissipation area 701 of the protection bottom case 1, the heat dissipation area 701 of the protection upper cover 2 is provided with a plurality of heat dissipation holes 703 uniformly distributed, and a heat dissipation air valve 704 is disposed between the heat dissipation area 701 of the protection bottom case 1 and the arc-shaped arch surface 702.
The upper end of the translation rod 8 is connected with a heat conducting silicon chip 11 for sealing the heat dissipation hole 703, and the lower end of the translation rod 8 is provided with a lifting steel wire rope 12 which penetrates through the heat dissipation area 701 of the protective bottom case 1 and is connected with the heat dissipation valve 704.
When the conducting plate 5 is lifted up to cut off the conveying circuit urgently, and the conducting plate 5 drives the translation rod 8 to move upwards synchronously, the heat conducting silicon chip 11 at the upper end of the translation rod 8 blocks the heat dissipation hole 703 and the heat dissipation valve 704 at the lower end of the translation rod 8 blocks and seals the heat dissipation area 701 of the protection bottom case 1.
When the conductive plate 5 falls to connect the conveying circuit, the conductive plate 5 drives the translation rod 8 to move downwards synchronously, the heat conducting silicon chip 11 at the upper end of the translation rod 8 releases the heat dissipation holes 703, the heat dissipation valve 704 at the lower end of the translation rod 8 is opened, and the heat dissipation area 701 of the protective bottom shell 1 is released, so that the heat dissipation and cooling treatment of the inner space of the protective upper cover 2 and the protective bottom shell 1 is realized.
As shown in fig. 4, another implementation manner of the emergency cut-off device of this embodiment is different from the previous implementation manner in that the extension spring 604 is separated from the conductive plate 5, the arc-shaped arch 702 of the protection bottom case 1 is provided with two threading holes 13, the lower ends of the two first-order hollow insulating plates 6051 are provided with reset pull ropes 14 passing through the two threading holes 13, the two reset pull ropes 14 in the threading holes 13 are pulled down to drive the first-order hollow insulating plate 6051 and the second-order retractable insulating plate 6052 to move down, the second-order retractable insulating plate 6052 retracts into the first-order hollow insulating plate 6051 under the action of the gear of the insulating column 3, and the conductive plate 5 realizes manual power supply to the transmission wire after the electromagnet 601 is disconnected.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. An emergency cut-off device comprises a protective bottom shell (1) and a protective upper cover (2), wherein a circuit breaker is arranged between the protective bottom shell (1) and the protective upper cover (2), and is characterized in that the circuit breaker comprises two insulating upright posts (3) arranged on the protective bottom shell (1), the upper ends of the insulating upright posts (3) are provided with electric contacts (4) connected with two conveying wires, a conductive plate (5) is arranged between the two electric contacts (4), and the protective bottom shell (1) and the protective upper cover (2) are provided with a circuit cut-off reset mechanism (6) for circularly realizing circuit cut-off and circuit connection;
protection drain pan (1) with protection upper cover (2) all are provided with radiator unit (7), radiator unit (7) are in circuit cuts off canceling release mechanical system (6) and lifts the effect of current conducting plate (5) outage is down realized sealed, and radiator unit (7) push down circuit cuts off canceling release mechanical system (6) the effect of current conducting plate (5) circular telegram is down realized the heat dissipation cooling.
2. The emergency cut-off device according to claim 1, wherein the circuit cut-off reset mechanism (6) comprises an electromagnet (601) which is arranged on the protective upper cover (2) and used for adsorbing the conductive plate (5) to move up and down, the electromagnet (601) is connected in a conducting circuit, an electric button (602) is installed on the conducting circuit, a processing chip (603) for receiving a processing result of monitoring data of a transmission circuit by a server is installed on the protective upper cover (2), the processing chip (603) realizes the disconnection and connection of the electromagnet (601) by controlling the opening and closing of the electric button (602), and the electromagnet (601) drives the conductive plate (5) to lift up and cut off the transmission wire when being electrified.
3. The emergency cut-off device according to claim 2, wherein the circuit cut-off reset mechanism (6) further comprises an extension spring (604) installed on the inner wall of the protective bottom case (1) and used for driving the conductive plate (5) to reset, a telescopic insulating plate (605) used for insulating and isolating the two electrical contacts (4) is installed on the side edge of the extension spring (604), the extension spring (604) is in a stretched state under the lifting action of the conductive plate (5), and a limiting rope (606) connected between the protective bottom case (1) and the telescopic insulating plate (605) is arranged inside the extension spring (604).
4. An emergency cut-off device according to claim 3, characterized in that two parallel side plates of the conductive plate (5) are respectively provided with a translation rod (8), and the inner side of the translation rod (8) is provided with a sleeve ring (9) sleeved on the insulating upright post (3) to move up and down, the translation rod (8) is provided with an open slot (10) for two transmission wires to pass through, and the conductive plate (5) drives the translation rod (8) to move up and down synchronously.
5. An emergency cut-off device according to claim 4, wherein the telescopic insulating plate (605) comprises a first-order hollow insulating plate (6051) mounted on the tension spring (604) and a second-order retractable insulating plate (6052) inserted inside the first-order hollow insulating plate (6051), the inner end of the second-order retractable insulating plate (6052) is connected with the inner end of the first-order hollow insulating plate (6051) through a compression spring (6053), the side section of the second-order retractable insulating plate (6052) is in a right trapezoid shape, and the upper length of the second-order retractable insulating plate (6052) is greater than the lower length of the second-order retractable insulating plate (6052).
6. An emergency cut-off device according to claim 5, characterized in that the length of the second step retractable insulating plate (6052) is less than the distance between the side of the tension spring (604) and the inside of one of the insulating columns (3), and the sum of the extended length of the second step retractable insulating plate (6052) and the length of the first step hollow insulating plate (6051) is greater than the length of the conductive plate (5).
7. The emergency cut-off device according to claim 5, wherein the extension spring (604) is fixedly adhered to the conductive plate (5), after the electromagnet (601) is powered off, the extension spring (604) drives the second-order retractable insulating plate (6052) to move downwards and retract towards the inside of the first-order hollow insulating plate (6051) due to the self-rebound force, and the conductive plate (5) connects the two electric contacts (4) to realize automatic power supply of the transmission wire.
8. The emergency shutdown device according to claim 5, wherein the heat dissipation assembly (7) comprises a heat dissipation region (701) disposed on the protection upper cover (2) and the protection bottom case (1), the heat dissipation region (701) of the protection upper cover (2) and the heat dissipation region (701) of the protection bottom case (1) are respectively provided with an arc-shaped arch surface (702), the heat dissipation region (701) of the protection upper cover (2) is provided with a plurality of uniformly distributed heat dissipation holes (703), and a heat dissipation air valve (704) is disposed between the heat dissipation region (701) of the protection bottom case (1) and the arc-shaped arch surface (702).
9. The emergency cutoff device according to claim 8, wherein a heat conducting silicon chip (11) for sealing the heat dissipation hole (703) is connected to the upper end of the translation rod (8), a lifting steel wire rope (12) passing through the heat dissipation area (701) of the protection bottom case (1) and connected to the heat dissipation valve (704) is arranged at the lower end of the translation rod (8), and when the translation rod (8) is driven by the conductive plate (5) to move upwards synchronously, the heat conducting silicon chip (11) at the upper end of the translation rod (8) blocks the heat dissipation hole (703) and the heat dissipation valve (704) at the lower end of the translation rod (8) blocks the heat dissipation area (701) of the protection bottom case (1).
10. The emergency cut-off device according to claim 8, wherein the tension spring (604) is separated from the conductive plate (5), the arc-shaped arch surface (702) of the protective bottom shell (1) is provided with two threading holes (13), the lower ends of the two first-order hollow insulating plates (6051) are provided with reset pull ropes (14) penetrating through the two threading holes (13), the reset pull ropes (14) in the two threading holes (13) are pulled down to drive the first-order hollow insulating plates (6051) and the second-order shrinkage insulating plates (6052) to move downwards, the second-order shrinkage insulating plates (6052) are shrunk towards the inside of the first-order hollow insulating plates (6051) under the action of the gears of the insulating columns (3), and the conductive plate (5) realizes manual power supply of a transmission wire after the electromagnet (601) is disconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010509828.5A CN111403243B (en) | 2020-06-08 | 2020-06-08 | Emergency cut-off device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010509828.5A CN111403243B (en) | 2020-06-08 | 2020-06-08 | Emergency cut-off device |
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| CN111403243A true CN111403243A (en) | 2020-07-10 |
| CN111403243B CN111403243B (en) | 2020-09-29 |
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| CN202010509828.5A Active CN111403243B (en) | 2020-06-08 | 2020-06-08 | Emergency cut-off device |
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| CN112366631A (en) * | 2020-10-30 | 2021-02-12 | 赵读刚 | Electric power transmission frame capable of carrying out emergency circuit breaking |
| CN112954987A (en) * | 2021-04-12 | 2021-06-11 | 南通通明集团有限公司 | Emergency cut-off device |
| CN113418559A (en) * | 2021-06-22 | 2021-09-21 | 湖南第一师范学院 | Power load monitoring device |
| CN113838707A (en) * | 2021-09-01 | 2021-12-24 | 东风时代(武汉)电池系统有限公司 | Relay integrated with current acquisition function and power battery pack |
| CN113871257A (en) * | 2021-09-23 | 2021-12-31 | 江西威齐电器有限公司 | Relay of easy installation |
| CN115662813A (en) * | 2022-11-16 | 2023-01-31 | 盐城市瑞恒电力石化设备有限公司 | Park construction emergency circuit protection device with electric shock protection function |
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| CN112366631A (en) * | 2020-10-30 | 2021-02-12 | 赵读刚 | Electric power transmission frame capable of carrying out emergency circuit breaking |
| CN112954987A (en) * | 2021-04-12 | 2021-06-11 | 南通通明集团有限公司 | Emergency cut-off device |
| CN113418559A (en) * | 2021-06-22 | 2021-09-21 | 湖南第一师范学院 | Power load monitoring device |
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| CN113838707B (en) * | 2021-09-01 | 2024-04-05 | 东风时代(武汉)电池系统有限公司 | Relay integrated with current collection function and power battery pack |
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| CN113871257B (en) * | 2021-09-23 | 2022-08-23 | 江西威齐电器有限公司 | Relay of easy installation |
| CN115662813A (en) * | 2022-11-16 | 2023-01-31 | 盐城市瑞恒电力石化设备有限公司 | Park construction emergency circuit protection device with electric shock protection function |
| CN115662813B (en) * | 2022-11-16 | 2023-03-10 | 盐城市瑞恒电力石化设备有限公司 | Emergency circuit protection device with electric shock protection function for park construction |
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