CN110994541A - Relay protection device with duplicate protection function - Google Patents
Relay protection device with duplicate protection function Download PDFInfo
- Publication number
- CN110994541A CN110994541A CN201911248651.1A CN201911248651A CN110994541A CN 110994541 A CN110994541 A CN 110994541A CN 201911248651 A CN201911248651 A CN 201911248651A CN 110994541 A CN110994541 A CN 110994541A
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- protection
- main body
- control unit
- protection device
- swing
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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
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
-
- 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
- H02H3/02—Details
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/209—Heat transfer by conduction from internal heat source to heat radiating structure
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to the technical field of relay protection, and discloses a relay protection device with a double protection function, wherein when the relay protection device performs on-off action, a contact on an ith control unit component and a contact on an (i + 1) th control unit component both move towards or away from each other relative to each other at the same time so as to realize on-off control, so that the double protection of on-off can be realized, the protection performance is improved, even if one contact has a problem in action, the other contact can also realize action disconnection, the on-off safety is effectively improved, and the on-off capacity is improved; the control unit assembly adopts a structural design, on-off control can be well realized, meanwhile, the structure can be conveniently arranged along the length direction of the main body, and control and arrangement of a plurality of interface contacts can be realized.
Description
Technical Field
The invention relates to the technical field of relay protection, in particular to a relay protection device with a double protection function.
Background
The relay protection device is applied to a power system, and is used for an automatic measure and a device for sending a warning signal to an operation attendant or directly sending a tripping command to a controlled breaker to terminate the development of events when a power element in the power system or the power system generates faults to endanger the safety system operation of the power system.
Current relay protection device is equipped with the main part, and the main part openly is equipped with the panel, and under long-time use, the main part can produce a large amount of heats, has influenced the stability of its operation, and this relay protection device mostly adopts back plug mode in addition, when the maintenance, needs the operator to wind the back and just can will accomplish the plug of wiring plug, and is very inconvenient, probably causes the condition that the staff touched by mistake moreover. In addition, the existing relay protection device generally utilizes the relative motion between the movable contact and the fixed contact to realize relay protection, once the movable contact is damaged and fails, the movable contact and the fixed contact cannot move relatively, and due to the lack of protective measures, the open circuit or the close protection cannot be realized, so that the safety is influenced.
Therefore, the present invention provides a relay protection device with dual protection functions to solve the problems in the background art.
Disclosure of Invention
The present invention is directed to a relay protection device with dual protection functions to solve the problems of the background art mentioned above.
In order to achieve the purpose, the invention provides the following technical scheme:
a relay protection device with a double protection function comprises a main body, an outer protection mechanism and an inner double-insurance control mechanism, wherein the outer protection mechanism is arranged outside the main body, the inner double-insurance control mechanism is arranged inside the main body, and the relay protection device is characterized in that the inner double-insurance control mechanism comprises n control unit assemblies which are sequentially arranged in the main body along the length direction of the main body, an on-off contact assembly for controlling the on-off of a circuit is arranged between the ith control unit assembly and the (i + 1) th control unit assembly adjacent to the ith control unit assembly, the on-off contact assembly comprises a contact on the ith control unit assembly and a contact on the (i + 1) th control unit assembly, when the on-off action is carried out, the contact on the ith control unit assembly and the contact on the (i + 1) th control unit assembly move towards or away from each other simultaneously, so as to realize on-off control, wherein n is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to n.
Further, as preferred, the control unit subassembly includes fixed pin axle, swing arm, guide pin axle, actuating arm, wherein, fixed pin axle is fixed in the main part, the middle part of swing arm articulated connect in on the fixed pin axle, the both ends of swing arm all articulated connect with the actuating arm, the tip fixed connection of actuating arm the contact, the main part is corresponding every the position of swing arm still fixedly is provided with two guide pin axles, be provided with the direction spout on the actuating arm, guide pin axle with the sliding fit of direction spout, so that come to right through guide pin axle the actuating arm carries out the direction and slides.
Preferably, a strip-shaped chute for sliding of the hinge shaft is arranged at the hinged part of the end part of the swing arm and the driving arm.
Preferably, a swing driving mechanism for driving the swing arm to swing is provided in the main body, and the swing driving mechanism controls on/off of the relay protection device.
Further, preferably, the swing driving mechanism includes two sets of electromagnetic driving units, and the two sets of electromagnetic driving units are disposed on two sides of the swing arm so as to drive the swing arm to swing through the electromagnetic driving units.
Further, as a preferred option, the electromagnetic driving unit includes an electromagnetic generator, a fixing clip, a spring, and a magnet block, wherein the fixing clip is fixed on the main body, the electromagnetic generator is fixedly disposed on the fixing clip, the magnet block is disposed on the swing arm at a position corresponding to the electromagnetic generator, and at least one spring is further disposed between the magnet block and the electromagnetic generator.
Further, preferably, the swing arm of the ith control unit assembly and the swing arm of the (i + th) control unit assembly swing in opposite directions.
Further, as preferred, outer protection machanism includes first protection subassembly and second protection subassembly, wherein, main part and visor, its characterized in that, the last fixed surface of main part installs the upper cover, the front fixed surface of visor installs control panel, and the rear fixed surface of visor installs the plugboard seat, the upper surface of upper cover is provided with first protection subassembly, the front fixed surface of main part installs the plugboard, the surface of main part is provided with the fixing base, one side fixed mounting of fixing base has the second protection subassembly.
Further, as preferred, first protection component includes louvre, heat-conducting plate and radiating groove, the last fixed surface of radiating groove installs the heat-conducting plate, the louvre has been seted up to the upper surface of radiating groove, the heat-conducting plate sets up the upper surface at the radiating groove, heat-conducting plate and radiating groove all are equidistant range, the diameter of louvre is less than the diameter of heat-conducting plate.
Further, as preferred, the second protection subassembly includes cardboard, draw-in groove, die clamping plate, card post and protection seat, one side fixed mounting of cardboard has the protection seat, the draw-in groove has been seted up to the inside of cardboard, one side fixed mounting from left to right of the upper surface of cardboard has die clamping plate and card post.
Compared with the prior art, the invention has the beneficial effects that:
1. when the on-off action is carried out, the contact on the ith control unit assembly and the contact on the (i + 1) th control unit assembly move towards or away from each other simultaneously relative to each other so as to realize the on-off control, so that the on-off dual protection can be realized, the protection performance is improved, even if one contact has a problem in action, the action disconnection can be realized due to the other contact, the on-off safety is effectively improved, and the on-off capacity is improved;
2. the control unit assembly adopts a structural design, on-off control can be well realized, meanwhile, the structure can be conveniently arranged along the length direction of the main body, and control and arrangement of a plurality of interface contacts can be realized;
3. when the relay protection device needs to be maintained, the clamping plate is rotated to be separated from the clamping column, the protective cover can be taken away for line plugging, the elements in the main body are maintained, the operation is convenient, a certain protection effect is realized on the plugging connector, the condition of no collision can be realized, and the service life of the relay protection device is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a relay protection device with a dual protection function;
fig. 2 is a schematic structural diagram of a main body of a relay protection device with a dual protection function;
FIG. 3 is a schematic structural diagram of an internal double-insurance control mechanism of a relay protection device with double-protection function when the internal double-insurance control mechanism is in closed communication;
fig. 4 is a schematic structural diagram of an internal double-safety control mechanism of a relay protection device with a double-protection function when the internal double-safety control mechanism is disconnected;
fig. 5 is a schematic structural diagram of a control unit component of an internal double-insurance control mechanism of a relay protection device with a double-protection function;
fig. 6 is a schematic structural diagram of a protective cover in a relay protection device with a dual protection function;
fig. 7 is a schematic structural diagram of a first protection component in a relay protection device with a dual protection function;
fig. 8 is an enlarged view of a portion a in fig. 1.
Detailed Description
Referring to fig. 1 to 8, in an embodiment of the present invention, a relay protection device with a dual protection function includes a main body 1, an outer protection mechanism and an inner dual-safety control mechanism, where the outer protection mechanism is disposed outside the main body, and the inner dual-safety control mechanism is disposed inside the main body, and is characterized in that the inner dual-safety control mechanism includes n control unit assemblies sequentially disposed in the main body along a length direction of the main body, an on-off contact assembly 12 for controlling on-off of a circuit is disposed between an ith control unit assembly 10 and an i +1 th control unit assembly 11 adjacent to the ith control unit assembly 10, where the on-off contact assembly 12 is composed of a contact 13 on the ith control unit assembly 10 and a contact 13 on the i +1 th control unit assembly 11, and when on-off operation is performed, the contact 13 on the ith control unit assembly 10 and the contact 13 on the i +1 th control unit assembly 11 are both And the two parts move towards or away from each other simultaneously relative to each other so as to realize on-off control, wherein n is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to n.
In this embodiment, the control unit assembly includes a fixed pin 21, a swing arm 16, a guide pin 14, and a driving arm 15, wherein the fixed pin is fixed in the main body, the middle of the swing arm is hinged to the fixed pin, the two ends of the swing arm are hinged to the driving arm, the end of the driving arm is fixedly connected to the contact 13, two guide pins are further fixedly disposed at positions corresponding to the swing arm on the main body, a guide chute is disposed on the driving arm, and the guide pins are in sliding fit with the guide chute, so that the driving arm can be guided and slid by the guide pins.
And a strip-shaped sliding groove for sliding of the articulated shaft is arranged at the articulated part of the end part of the swing arm and the driving arm. The main body is internally provided with a swing driving mechanism for driving the swing arm to swing, and the swing driving mechanism controls the on-off of the relay protection device.
The swing driving mechanism comprises two groups of electromagnetic driving units, and the two groups of electromagnetic driving units are arranged on two sides of the swing arm so as to drive the swing arm to swing through the electromagnetic driving units.
The electromagnetic driving unit comprises an electromagnetic generator 19, a fixing clamp 18, a spring 17 and a magnet block 20, wherein the fixing clamp is fixed on the main body, the electromagnetic generator is fixedly arranged on the fixing clamp, the magnet block is arranged on the swing arm corresponding to the position of the electromagnetic generator, and at least one spring is arranged between the magnet block and the electromagnetic generator.
As shown, the swing arm of the ith control unit assembly 10 and the swing arm of the (i + 1) th control unit assembly 11 swing in opposite directions.
Outer protection machanism includes first protection component 6 and second protection component 9, wherein, main part 1 and visor 3, its characterized in that, the last fixed surface of main part 1 installs upper cover 2, the front fixed surface of visor 3 installs control panel 5, and the rear fixed surface of visor 3 installs plugboard seat 4, the upper surface of upper cover 2 is provided with first protection component 6, the front fixed surface of main part 1 installs plugboard 7, the surface of main part 1 is provided with fixing base 8, one side fixed mounting of fixing base 8 has second protection component 9.
Wherein, the first protection component 6 comprises a heat dissipation hole 61, a heat conduction plate 62 and a heat dissipation groove 63, the heat conduction plate 62 is fixedly installed on the upper surface of the heat dissipation groove 63, the heat dissipation hole 61 is opened on the upper surface of the heat dissipation groove 63, the heat conduction plate 62 is arranged on the upper surface of the heat dissipation groove 63, the heat conduction plate 62 and the heat dissipation groove 63 are arranged at equal intervals, the diameter of the heat dissipation hole 61 is smaller than that of the heat conduction plate 62, when the relay protection device is used, a part of heat can be generated, due to the characteristics of air, the natural convection process is from bottom to top, therefore, the more smooth the air flowing channel is, the faster the heat dissipation speed is, the better the heat dissipation speed is, therefore, the heat can be dissipated through the heat dissipation groove 63, part of the heat can also be dissipated through the heat dissipation hole 61, when the service time is longer, a large amount of, the heat that produces can pass through the inside that first protection component 6 conveyed heat-conducting plate 62, can make the inside heat of main part 1 further reduce, through the cooperation of louvre 61, heat-conducting plate 62 and radiating groove 63 use, can make the inside heat of main part 1 reduce by a wide margin, has improved the life of main part 1.
As a preferred embodiment, the second protection component 9 includes a clamping plate 91, a clamping groove 92, a clamping plate 93, a clamping column 94 and a protection seat 95, the protection seat 95 is fixedly installed on one side of the clamping plate 91, the clamping groove 92 is opened inside the clamping plate 91, the clamping plate 93 and the clamping column 94 are fixedly installed on one side of the upper surface of the clamping plate 91 from left to right, a groove with the same diameter as the clamping column 94 is opened on the outer surface of the clamping plate 93, the length of the clamping groove 92 is greater than that of the plug board seat 4, one end of the protection seat 95 is fixedly connected to the outer surface of the fixed seat 8, the diameter of the first protection component 6 is smaller than that of the upper cover 2, the width of the plug board seat 4 is equal to the width of the groove opened on the surface of the second protection component 9, the plug board 7 is fixedly installed on the front surface of the main body 1, the plug board 7 is prevented from being installed on the rear surface of the main body, greatly improved staff's work efficiency, when needs carry out the maintenance to main part 1, only need to transfer second protection component 9 can, because picture peg seat 4 is located the inside of draw-in groove 92, consequently only need with picture peg seat 4 break away from draw-in groove 92 can, alright take away visor 3, carry out the maintenance to main part 1 inside, at first slightly rotate clamp plate 93, make clamp plate 93 break away from with card post 94, picture peg seat 4 just exposes outside this moment, the visor 3 of slightly taking away this moment alright take away visor 3, alright further peg graft and maintain pegging graft board 7, staff's work efficiency has been improved greatly, relay protection device's normal use has been guaranteed, comparatively convenient, swift maintenance to relay protection device, relay protection device's life has been improved.
When the on-off action is carried out, the contact on the ith control unit assembly and the contact on the (i + 1) th control unit assembly move towards or away from each other simultaneously relative to each other so as to realize the on-off control, so that the on-off dual protection can be realized, the protection performance is improved, even if one contact has a problem in action, the action disconnection can be realized due to the other contact, the on-off safety is effectively improved, and the on-off capacity is improved; the control unit assembly adopts a structural design, on-off control can be well realized, meanwhile, the structure can be conveniently arranged along the length direction of the main body, and control and arrangement of a plurality of interface contacts can be realized; when the relay protection device needs to be maintained, the clamping plate is rotated to be separated from the clamping column, the protective cover can be taken away for line plugging, the elements in the main body are maintained, the operation is convenient, a certain protection effect is realized on the plugging connector, the condition of no collision can be realized, and the service life of the relay protection device is prolonged.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.
Claims (10)
1. A relay protection device with double protection functions comprises a main body (1), an outer protection mechanism and an inner double-insurance control mechanism, wherein the outer protection mechanism is arranged outside the main body, the inner double-insurance control mechanism is arranged inside the main body, and the relay protection device is characterized in that the inner double-insurance control mechanism comprises n control unit assemblies which are sequentially arranged in the main body along the length direction of the main body, an on-off contact assembly (12) for controlling the on-off of a circuit is arranged between an ith control unit assembly (10) and an (i + 1) th control unit assembly (11) adjacent to the ith control unit assembly, the on-off contact assembly (12) consists of a contact (13) on the ith control unit assembly (10) and a contact (13) on the (i + 1) th control unit assembly (11), and when the on-off action is carried out, and the contact (13) on the ith control unit assembly (10) and the contact (13) on the (i + 1) th control unit assembly (11) move towards or away from each other simultaneously so as to realize on-off control, wherein n is an integer greater than or equal to 2, and i is an integer greater than or equal to 1 and less than or equal to n.
2. The relay protection device with the dual protection function according to claim 1, wherein the control unit assembly includes a fixed pin (21), a swing arm (16), a guide pin (14), and a driving arm (15), wherein the fixed pin is fixed in the main body, a middle portion of the swing arm is hinged to the fixed pin, two ends of the swing arm are hinged to the driving arm, an end of the driving arm is fixedly connected to the contact (13), two guide pins are further fixedly disposed on the main body at positions corresponding to each swing arm, a guide chute is disposed on the driving arm, and the guide pins are slidably engaged with the guide chute so as to guide the driving arm to slide through the guide pins.
3. The relay protection device with double protection functions as claimed in claim 2, wherein a bar-shaped chute for sliding of a hinge shaft is provided at a hinge point of the end of the swing arm and the driving arm.
4. The relay protection device according to claim 2, wherein a swing driving mechanism for driving the swing arm to swing is provided in the main body, and the swing driving mechanism controls on/off of the relay protection device.
5. The relay protection device with the double protection function according to claim 4, wherein the swing driving mechanism includes two sets of electromagnetic driving units, and the two sets of electromagnetic driving units are disposed on two sides of the swing arm so as to drive the swing arm to swing through the electromagnetic driving units.
6. The relay protection device with dual protection functions according to claim 5, wherein the electromagnetic driving unit comprises an electromagnetic generator (19), a fixing clip (18), a spring (17), and a magnet block (20), wherein the fixing clip is fixed on the main body, the electromagnetic generator is fixedly disposed on the fixing clip, the magnet block is disposed on the swing arm corresponding to the electromagnetic generator, and at least one spring is disposed between the magnet block and the electromagnetic generator.
7. A relay protection device with dual protection function according to claim 2, wherein the swing direction of the swing arm of the ith control unit assembly (10) is opposite to the swing direction of the swing arm of the (i + 1) th control unit assembly (11).
8. The relay protection device with the double protection functions according to claim 1, wherein the outer protection mechanism comprises a first protection component (6) and a second protection component (9), wherein the main body (1) and the protection cover (3) are characterized in that the upper cover (2) is fixedly mounted on the upper surface of the main body (1), the control panel (5) is fixedly mounted on the front surface of the protection cover (3), the plugboard seat (4) is fixedly mounted on the rear surface of the protection cover (3), the first protection component (6) is arranged on the upper surface of the upper cover (2), the plugboard (7) is fixedly mounted on the front surface of the main body (1), the fixed seat (8) is arranged on the outer surface of the main body (1), and the second protection component (9) is fixedly mounted on one side of the fixed seat (8).
9. The relay protection device with the dual protection function according to claim 8, wherein the first protection component (6) comprises heat dissipation holes (61), a heat conducting plate (62) and heat dissipation grooves (63), the heat conducting plate (62) is fixedly mounted on the upper surface of the heat dissipation grooves (63), the heat dissipation holes (61) are formed in the upper surface of the heat dissipation grooves (63), the heat conducting plate (62) is arranged on the upper surface of the heat dissipation grooves (63), the heat conducting plate (62) and the heat dissipation grooves (63) are arranged at equal intervals, and the diameters of the heat dissipation holes (61) are smaller than the diameters of the heat conducting plate (62).
10. The relay protection device with the dual protection function according to claim 8, wherein the second protection component (9) comprises a clamping plate (91), a clamping groove (92), a clamping plate (93), a clamping column (94) and a protection seat (95), the protection seat (95) is fixedly installed on one side of the clamping plate (91), the clamping groove (92) is opened inside the clamping plate (91), and the clamping plate (93) and the clamping column (94) are fixedly installed on one side of the upper surface of the clamping plate (91) from left to right.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248651.1A CN110994541A (en) | 2019-12-09 | 2019-12-09 | Relay protection device with duplicate protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911248651.1A CN110994541A (en) | 2019-12-09 | 2019-12-09 | Relay protection device with duplicate protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110994541A true CN110994541A (en) | 2020-04-10 |
Family
ID=70091279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911248651.1A Pending CN110994541A (en) | 2019-12-09 | 2019-12-09 | Relay protection device with duplicate protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110994541A (en) |
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2019
- 2019-12-09 CN CN201911248651.1A patent/CN110994541A/en active Pending
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