CN111584314A - Drop-out power protection device based on thermal bimetallic strip principle - Google Patents
Drop-out power protection device based on thermal bimetallic strip principle Download PDFInfo
- Publication number
- CN111584314A CN111584314A CN202010395119.9A CN202010395119A CN111584314A CN 111584314 A CN111584314 A CN 111584314A CN 202010395119 A CN202010395119 A CN 202010395119A CN 111584314 A CN111584314 A CN 111584314A
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- outside
- fixedly connected
- spring piece
- shell
- movably connected
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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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/14—Electrothermal mechanisms
- H01H71/16—Electrothermal mechanisms with bimetal element
-
- 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
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
-
- 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
- H02H3/08—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 responsive to excess current
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The invention relates to the technical field of electric power, and discloses a drop-out electric power protection device based on a thermal bimetallic strip principle, which comprises a shell, wherein a heating element is fixedly connected inside the shell, a double-layer metal sheet is movably connected outside the heating element, a sliding block is movably connected outside the double-layer metal sheet, a movable spring piece is movably connected outside the sliding block, a fixed spring piece is movably connected outside the movable spring piece, a fixed plate is movably connected outside the fixed spring piece, an adjusting screw is connected inside the fixed plate through a thread, an electromagnet is fixedly connected inside the shell, a permanent magnet is movably connected outside the electromagnet, the double-layer metal sheet is heated by the heating element through the matching use of the heating element, the double-layer metal sheet and the sliding block when a circuit is short-circuited, so that the double-layer metal sheet pushes the sliding block, therefore, the effect of monitoring the circuit is achieved, and the safety of the circuit is ensured.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to a drop-out type electric power protection device based on a thermal bimetallic strip principle.
Background
The invention relates to electric power, which is an energy source taking electric energy as power, in the 70 th 19 th century, the invention and application of the electric power lift the second industrialized climax and become one of three scientific and technological revolution which occur in the world since the 18 th century of human history, the life of people is changed by the science and technology, an electric power system is an electric power production and consumption system which consists of links of power generation, power transmission, power transformation, power distribution, power utilization and the like, the electric power system converts the primary energy in the nature into the electric power through a mechanical energy device, and then the electric power is supplied to each user through the power transmission, the power transformation and the power distribution.
In the power transmission process, in order to protect the circuit safety and prevent the occurrence of circuit short-circuit accidents, a circuit protection device needs to be installed in the circuit transmission process, at present, a drop-out fuse is mainly selected in the circuit protection device in China, however, most of fuses used in the existing distribution line are non-closed fuses, the equipment has the advantage of simple structure, but because live parts such as moving and static contacts and connecting terminals are in an exposed state, corrosion damage is easy to occur, lap discharge of foreign matters such as branches, iron wires and small animals is easy to occur, more seriously, in wind, rain, ice, frost and snow weather, the exposed live parts are easy to be short-circuited or have grounding accidents, and the blown fuse wire cannot be reused after being blown, cannot be recycled, and therefore, material waste is caused, and the use cost of the device is increased.
In order to solve the above problems, the inventor provides a drop-out power protection device based on the thermal bimetallic strip principle, which has the advantages of being safe in a closed control monitoring circuit, effectively avoiding the influence of the external environment, being capable of applying the environment with bad weather or large wind and sand, effectively increasing the application range of equipment, avoiding the corrosion of rain and snow to electrical elements, prolonging the service life of the equipment, ensuring the safety of power transmission, avoiding the trouble of replacing a fuse wire, being capable of being effectively recycled, and reducing the use cost of the equipment.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a drop-out electric protection device based on a thermal bimetallic strip principle comprises a shell, a heating element, a double-layer metal sheet, a sliding block, a movable spring piece, a fixed plate, an adjusting screw, an electromagnet, a permanent magnet, a push rod, a limiting spring, an adjusting rod, a connecting rod, a contact plate, a wiring block, a supporting spring, a reset spring and an operating ring.
The positions and the connection relations of the structures are as follows:
the heating element is fixedly connected inside the shell, the double-layer metal sheet is movably connected outside the heating element, the sliding block is movably connected outside the double-layer metal sheet, the movable spring piece is movably connected outside the sliding block, the fixed spring piece is movably connected outside the movable spring piece, the fixed plate is movably connected outside the fixed spring piece, the adjusting screw is connected inside the fixed plate in a threaded manner, the electromagnet is fixedly connected inside the shell, the permanent magnet is movably connected outside the electromagnet, the push rod is fixedly connected outside the permanent magnet, the limit rod is movably connected outside the push rod, the limit spring is fixedly connected outside the limit rod, the adjusting rod is movably connected outside the limit rod, the connecting rod is fixedly connected outside the adjusting rod, and the touch panel is movably connected outside the connecting rod, the external hinged of touch panel is connected with the terminal block, the outside fixedly connected with supporting spring of touch panel, the outside of adjusting the pole cup joints and is connected with reset spring, the bottom fixedly connected with operation ring of adjusting the pole.
Preferably, the heating element is electrically connected to an external circuit.
Preferably, the double-layer metal sheet is fixedly connected inside the shell, the double-layer metal sheet is formed by combining metal materials with different thermal expansion coefficients, and the metal sheet with the lower thermal expansion coefficient is positioned on one side close to the movable spring piece.
Preferably, the tops of the movable spring piece and the fixed spring piece are both fixedly connected inside the shell, the tops of the movable spring piece and the fixed spring piece are both provided with wiring devices, and the bottoms of the movable spring piece and the fixed spring piece are both provided with power contacts.
Preferably, the fixing plate is fixedly connected inside the shell, and the adjusting screw is movably connected with the fixing spring piece.
Preferably, the electromagnet is electrically connected with the movable spring piece and the fixed spring piece in series, the electromagnet, the movable spring piece and the fixed spring piece are electrically connected with an external circuit, and the like magnetic poles of the electromagnet and the permanent magnet are connected.
Preferably, the limiting rod and the limiting spring are movably connected inside the shell, the limiting rod is hinged inside the shell, one end of the limiting spring is fixedly connected with the limiting rod, and the other end of the limiting spring is fixedly connected with the shell.
Preferably, the adjusting rod is slidably connected inside the housing, and the adjusting rod penetrates through the housing.
Preferably, the connection blocks, the touch plates and the supporting springs are movably connected to two sides of the connecting rod respectively, the connection blocks on two sides are fixedly connected with the shell, the connection blocks on two sides are electrically connected with the main circuit, the touch plates on two sides of the connecting rod are hinged to the connection blocks respectively, and the supporting springs are fixedly connected between the touch plates and the connection blocks.
Advantageous effects
Compared with the prior art, the invention provides a drop-out power protection device based on the thermal bimetallic strip principle, which has the following beneficial effects:
1. this drop-out power protection device based on hot bimetallic strip principle uses through the cooperation of heating element, double-deck sheetmetal and slider, and when the circuit short circuit, then heating element heating double-deck sheetmetal to make double-deck sheetmetal promote the slider, thereby reach monitoring circuit's effect, guarantee the safety of circuit.
2. This drop-out power protection device based on hot bimetallic strip principle uses through the cooperation of activity spring leaf, fixed plate, adjusting screw, electro-magnet, permanent magnet and push rod to reach the disconnection through electromagnetic induction principle control circuit, thereby reach circulated use's effect, reduce the material waste, reduce the use cost of equipment.
3. This drop-out power protection device based on hot bimetallic strip principle uses through connecting rod, touch panel, terminal block and supporting spring cooperation to guarantee the stability of connecting rod and touch panel contact, effectively guarantee power transmission's stability, avoid producing and carry the interruption or carry the electric current undulant.
4. This drop-out power protection device based on hot bimetallic strip principle uses through the cooperation of adjusting pole, reset spring and operation ring to guarantee when adjusting the limit that the pole loses the gag lever post, can effectively in time break away from, thereby in time break off the connection of circuit, guarantee circuit safety.
5. This drop-out power protection device based on hot bimetallic strip principle, through the use of casing, makes power component be located the inside of casing, guarantees circuit safety control element's leakproofness to effectively increase the application range of equipment, and avoid rain and snow to electrical components's corruption, increase the life of equipment.
Drawings
FIG. 1 is a schematic view of the overall connection of the structure of the present invention;
FIG. 2 is a schematic view of the connection of the structural shell, the heating element, the double-layer metal sheet, the sliding block, the movable spring sheet, the fixed plate and the adjusting screw according to the present invention;
FIG. 3 is a schematic view showing the connection of the structural shell, the limiting rod, the limiting spring, the adjusting rod, the connecting rod, the junction block, the return spring and the operating ring according to the present invention;
fig. 4 is an enlarged view of the connection of the junction block, the contact plate, the support spring and the connecting rod of part a of the structure diagram 3 of the present invention.
In the figure: 1. a housing; 2. a heating element; 3. a double-layer metal sheet; 4. a slider; 5. a movable spring plate; 6. fixing the spring piece; 7. a fixing plate; 8. an adjusting screw; 9. an electromagnet; 10. a permanent magnet; 11. a push rod; 12. a limiting rod; 13. a limiting spring; 14. adjusting a rod; 15. a connecting rod; 16. a touch panel; 17. a junction block; 18. a support spring; 19. a return spring; 20. and (6) operating the ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a drop-out power protection device based on the thermal bimetallic strip principle includes a housing 1, a heating element 2, a double-layer metal strip 3, a slider 4, a movable spring strip 5, a fixed spring strip 6, a fixed plate 7, an adjusting screw 8, an electromagnet 9, a permanent magnet 10, a push rod 11, a limit rod 12, a limit spring 13, an adjusting rod 14, a connecting rod 15, a touch plate 16, a junction block 17, a support spring 18, a return spring 19, and an operation ring 20.
The positions and the connection relations of the structures are as follows:
the heating element 2 is fixedly connected inside the shell 1, the heating element 2 is electrically connected with an external circuit, a double-layer metal sheet 3 is movably connected outside the heating element 2, the double-layer metal sheet 3 is fixedly connected inside the shell 1, the double-layer metal sheet 3 is formed by combining metal materials with different thermal expansion coefficients, the metal sheet with the lower thermal expansion coefficient is positioned at one side close to the movable spring piece 5, a sliding block 4 is movably connected outside the double-layer metal sheet 3, the heating element 2, the double-layer metal sheet 3 and the sliding block 4 are matched for use, when the circuit is short-circuited, the heating element 2 heats the double-layer metal sheet 3, so that the double-layer metal sheet 3 pushes the sliding block 4, the effect of monitoring the circuit is achieved, the safety of the circuit is ensured, the movable spring piece 5 is movably connected outside the sliding block 4, and the fixed spring piece 6, the top of activity spring leaf 5 and fixed spring leaf 6 is equal fixed connection in the inside of casing 1, and the top of activity spring leaf 5 and fixed spring leaf 6 all is provided with termination, the bottom of activity spring leaf 5 and fixed spring leaf 6 all is provided with the electric power contact, the outside swing joint of fixed spring leaf 6 has fixed plate 7, the internal thread of fixed plate 7 is connected with adjusting screw 8, fixed plate 7 fixed connection is in the inside of casing 1, and adjusting screw 8 and fixed spring leaf 6 swing joint.
The inside fixedly connected with electro-magnet 9 of casing 1, electro-magnet 9 and movable spring leaf 5, fixed spring leaf 6 electric property series connection, and electro-magnet 9, movable spring leaf 5 and fixed spring leaf 6 and external circuit electric connection, and electro-magnet 9 and permanent magnet 10 like magnetic pole meet, the outside swing joint of electro-magnet 9 has permanent magnet 10, the outside fixedly connected with push rod 11 of permanent magnet 10, through movable spring leaf 5, fixed spring leaf 6, fixed plate 7, adjusting screw 8, electro-magnet 9, permanent magnet 10 and push rod 11's cooperation is used, thereby reach the disconnection through electromagnetic induction principle control circuit, thereby reach the effect of circulated use, reduce the material waste, reduce the use cost of equipment, the outside swing joint of push rod 11 has gag lever post 12.
The external part of the limiting rod 12 is fixedly connected with a limiting spring 13, the limiting rod 12 and the limiting spring 13 are movably connected in the shell 1, the limiting rod 12 is hinged in the shell 1, one end of the limiting spring 13 is fixedly connected with the limiting rod 12, the other end of the limiting spring 13 is fixedly connected with the shell 1, the external part of the limiting rod 12 is movably connected with an adjusting rod 14, the adjusting rod 14 is slidably connected in the shell 1, the adjusting rod 14 penetrates through the shell 1, the external part of the adjusting rod 14 is fixedly connected with a connecting rod 15, the external part of the connecting rod 15 is movably connected with a touch plate 16, the external part of the touch plate 16 is hinged with a wiring block 17, the external part of the touch plate 16 is fixedly connected with a supporting spring 18, the wiring block 17, the touch plate 16 and the supporting spring 18 are respectively and movably connected at two sides of the connecting rod 15, the wiring blocks 17 at two sides are, and the contact plates 16 at both sides of the connecting rod 15 are respectively hinged with the junction block 17, and the supporting spring 18 is fixedly connected between the contact plates 16 and the junction block 17, through the connecting rod 15, the contact plates 16, the junction block 17 and the supporting spring 18 are matched for use, thereby ensuring the contact stability of the connecting rod 15 and the contact plates 16, effectively ensuring the stability of electric power transmission, avoiding the interruption of production and transmission or the fluctuation of transmission current, the outer part of the adjusting rod 14 is sleeved and connected with a reset spring 19, the bottom of the adjusting rod 14 is fixedly connected with an operating ring 20, through the matching use of the adjusting rod 14, the reset spring 19 and the operating ring 20, thereby ensuring that when the adjusting rod 14 loses the limit of the limiting rod 12, the circuit can be effectively and timely separated, thereby timely disconnecting the connection of the circuit.
Through the use of casing 1, make electric power component be located the inside of casing 1, guarantee circuit safety control element's leakproofness to effectively increase the application range of equipment, and avoid rain and snow to electrical components's corruption, increase the life of equipment.
The working process and principle are that when the device is assembled, the shell 1 is fixedly connected with the circuit conveying equipment, the heating element 2 is electrically connected with the circuit, the movable spring piece 5, the fixed spring piece 6, the electromagnet 9 is electrically connected with the circuit, the wiring block 17 is connected with the circuit in series, when the circuit is overloaded or short-circuited in the power conveying process, the circuit current is increased, so that the heating element 2 generates heat, the double-layer metal piece 3 is fixedly connected with the inside of the shell 1 because the heating element 2 is movably connected with the double-layer metal piece 3, the double-layer metal piece 3 is formed by combining metal materials with different thermal expansion coefficients, the metal piece with lower thermal expansion coefficient is positioned at one side close to the movable spring piece 5, the double-layer metal piece 3 is movably connected with the sliding block 4, the sliding block 4 is movably connected with the movable spring piece 5, and the movable spring piece 5, the fixed spring piece 6 is connected with the movable spring piece 5 and the fixed spring piece 6 in series, the electromagnet 9, the movable spring piece 5 and the fixed spring piece 6 are electrically connected with an external circuit, the electromagnet 9 is connected with the same-polarity magnetic pole of the permanent magnet 10, and the permanent magnet 10 is fixedly connected with the push rod 11, so when the heat of the heating element 2 is increased, the heating element 2 starts to heat the double-layer metal piece 3, the double-layer metal piece 3 starts to generate bending deformation according to the thermal double-metal piece principle, the double-layer metal piece 3 pushes the sliding block 4, the sliding block 4 pushes the movable spring piece 5, the movable spring piece 5 is contacted with the fixed spring piece 6, the electromagnet 9 is electrified, the electromagnet 9 generates magnetic force and repels the permanent magnet 10 according to the electromagnetic induction principle, the electromagnet 9 pushes the permanent magnet 10, the permanent magnet 10 pushes the push rod 11, and, the fixed plate 7 is in threaded connection with the adjusting screw 8, and the adjusting screw 8 is movably connected with the fixed spring piece 6, so that the adjusting screw 8 is screwed to drive the fixed spring piece 6 to bend, and the distance between the fixed spring piece 6 and the movable spring piece 5 is changed, so that the effect of adjusting the overload current disconnection value of a circuit is achieved, and the application range of the equipment is effectively enlarged.
Because the push rod 11 is movably connected with the limit rod 12, the limit rod 12 is fixedly connected with the limit spring 13, the limit rod 12 is movably connected with the adjusting rod 14, the adjusting rod 14 is fixedly connected with the connecting rod 15, the wiring block 17, the contact plate 16 and the supporting spring 18 are respectively movably connected with two sides of the connecting rod 15, the wiring blocks 17 at two sides are fixedly connected with the shell 1, the wiring blocks 17 at two sides are electrically connected with the main circuit, the contact plates 16 at two sides of the connecting rod 15 are respectively hinged with the wiring blocks 17, the supporting spring 18 is fixedly connected between the contact plates 16 and the wiring blocks 17, the connecting rod 15 is movably connected with the contact plates 16 at two sides, the reset spring 19 is sleeved and connected with the outer part of the adjusting rod 14, the adjusting rod 14 is fixedly connected with the operating ring 20, the push rod 11 pushes the limit rod 12 to compress the limit spring 13 and rotate, and the limit rod 12 loses the limiting effect on, meanwhile, the adjusting rod 14 slides downwards under the action of the reset spring 19, the adjusting rod 14 drives the connecting rod 15 to slide downwards, the connecting rod 15 and the contact plate 16 are disconnected, circuit disconnection is caused, the effect of protecting a circuit is achieved, in addition, when the device is used again, the adjusting rod 14 is pushed through the operating ring 20, the adjusting rod 14 stretches the reset spring 19 and slides upwards, the adjusting rod 14 drives the connecting rod 15 to move upwards, the connecting rod 15 is in contact with the contact plate 16, the contact plate 16 is driven to rotate simultaneously, the contact plate 16 compresses the supporting spring 18, good contact between the connecting rod 15 and the contact plate 16 is effectively guaranteed, the circuit is communicated, the adjusting rod 14 and the limiting rod 12 are movably connected at the moment, and the limiting rod 12 guarantees the position of the adjusting rod 14 to be stable.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A drop-out power protection device based on the thermal bimetallic strip principle comprises a shell (1), and is characterized in that: the heating element (2) is fixedly connected to the inside of the shell (1), the double-layer metal sheet (3) is movably connected to the outside of the heating element (2), the slider (4) is movably connected to the outside of the double-layer metal sheet (3), the movable spring sheet (5) is movably connected to the outside of the slider (4), the fixed spring sheet (6) is movably connected to the outside of the movable spring sheet (5), the fixed spring sheet (6) is movably connected to the outside of the fixed spring sheet (7), the adjusting screw (8) is connected to the inner thread of the fixed plate (7), the electromagnet (9) is fixedly connected to the inside of the shell (1), the permanent magnet (10) is movably connected to the outside of the electromagnet (9), the push rod (11) is fixedly connected to the outside of the permanent magnet (10), and the limiting rod (12) is movably connected to, the utility model discloses a spacing pole of fixed connection of outside of gag lever post (12) is spacing spring (13), the outside swing joint of gag lever post (12) has regulation pole (14), the outside fixedly connected with connecting rod (15) of adjusting pole (14), the outside swing joint of connecting rod (15) has touch panel (16), the articulated lug (17) that is connected with in outside of touch panel (16), the outside fixedly connected with supporting spring (18) of touch panel (16), the outside of adjusting pole (14) is cup jointed and is connected with reset spring (19), the bottom fixedly connected with handle ring (20) of adjusting pole (14).
2. A fall-down power protection device based on the thermal bimetallic strip principle as claimed in claim 1, characterized in that: the heating element 2 is electrically connected to an external circuit.
3. A fall-down power protection device based on the thermal bimetallic strip principle as claimed in claim 1, characterized in that: the double-layer metal sheet (3) is fixedly connected inside the shell (1), the double-layer metal sheet (3) is formed by combining metal materials with different thermal expansion coefficients, and the metal sheet with the lower thermal expansion coefficient is positioned on one side close to the movable spring piece (5).
4. A fall-down power protection device based on the thermal bimetallic strip principle as claimed in claim 1, characterized in that: the top of the movable spring piece (5) and the top of the fixed spring piece (6) are both fixedly connected inside the shell (1), the top of the movable spring piece (5) and the top of the fixed spring piece (6) are both provided with wiring devices, and the bottom of the movable spring piece (5) and the bottom of the fixed spring piece (6) are both provided with electric contacts.
5. A fall-down power protection device based on the thermal bimetallic strip principle as claimed in claim 1, characterized in that: the fixing plate (7) is fixedly connected inside the shell (1), and the adjusting screw (8) is movably connected with the fixing spring piece (6).
6. A fall-down power protection device based on the thermal bimetallic strip principle as claimed in claim 1, characterized in that: the electromagnet (9) is electrically connected with the movable spring piece (5) and the fixed spring piece (6) in series, the electromagnet (9), the movable spring piece (5) and the fixed spring piece (6) are electrically connected with an external circuit, and like magnetic poles of the electromagnet (9) and the permanent magnet (10) are connected.
7. A fall-down power protection device based on the thermal bimetallic strip principle as claimed in claim 1, characterized in that: the limiting rod (12) and the limiting spring (13) are movably connected inside the shell (1), the limiting rod (12) is hinged inside the shell (1), one end of the limiting spring (13) is fixedly connected with the limiting rod (12), and the other end of the limiting spring (13) is fixedly connected with the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010395119.9A CN111584314A (en) | 2020-05-12 | 2020-05-12 | Drop-out power protection device based on thermal bimetallic strip principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010395119.9A CN111584314A (en) | 2020-05-12 | 2020-05-12 | Drop-out power protection device based on thermal bimetallic strip principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111584314A true CN111584314A (en) | 2020-08-25 |
Family
ID=72126479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010395119.9A Withdrawn CN111584314A (en) | 2020-05-12 | 2020-05-12 | Drop-out power protection device based on thermal bimetallic strip principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111584314A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241289A (en) * | 2021-05-24 | 2021-08-10 | 陈德英 | Distribution network automation safety switch |
| CN117277080A (en) * | 2023-09-19 | 2023-12-22 | 冀昌电气集团有限公司 | Intelligent comprehensive distribution box with antitheft and dampproof functions |
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|---|---|---|---|---|
| GB202321A (en) * | 1922-08-11 | 1924-06-12 | British Thomson Houston Co Ltd | Improvements in and relating to thermally controlled electric switches |
| GB0410911D0 (en) * | 2004-05-17 | 2004-06-16 | Lin Tzo Ing | Electronic circuit breaker with magnetic mechanism |
| CN102347177A (en) * | 2011-09-19 | 2012-02-08 | 广东天富电气集团有限公司 | Method for operating thermomagnetic circuit breaker |
| CN203481071U (en) * | 2013-08-14 | 2014-03-12 | 温州市黎洋电子有限公司 | Limit switch having temperature indication composition and handle |
| CN205488000U (en) * | 2016-02-19 | 2016-08-17 | 国网山东省电力公司安丘市供电公司 | Low -voltage circuit breaker |
| CN206432226U (en) * | 2017-02-20 | 2017-08-22 | 杨丰帆 | A kind of electrical engineering distributor breaker |
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2020
- 2020-05-12 CN CN202010395119.9A patent/CN111584314A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB202321A (en) * | 1922-08-11 | 1924-06-12 | British Thomson Houston Co Ltd | Improvements in and relating to thermally controlled electric switches |
| GB0410911D0 (en) * | 2004-05-17 | 2004-06-16 | Lin Tzo Ing | Electronic circuit breaker with magnetic mechanism |
| CN102347177A (en) * | 2011-09-19 | 2012-02-08 | 广东天富电气集团有限公司 | Method for operating thermomagnetic circuit breaker |
| CN203481071U (en) * | 2013-08-14 | 2014-03-12 | 温州市黎洋电子有限公司 | Limit switch having temperature indication composition and handle |
| CN205488000U (en) * | 2016-02-19 | 2016-08-17 | 国网山东省电力公司安丘市供电公司 | Low -voltage circuit breaker |
| CN206432226U (en) * | 2017-02-20 | 2017-08-22 | 杨丰帆 | A kind of electrical engineering distributor breaker |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241289A (en) * | 2021-05-24 | 2021-08-10 | 陈德英 | Distribution network automation safety switch |
| CN113241289B (en) * | 2021-05-24 | 2022-09-30 | 国网浙江省电力有限公司台州供电公司 | Distribution network automation safety switch |
| CN117277080A (en) * | 2023-09-19 | 2023-12-22 | 冀昌电气集团有限公司 | Intelligent comprehensive distribution box with antitheft and dampproof functions |
| CN117277080B (en) * | 2023-09-19 | 2024-03-29 | 冀昌电气集团有限公司 | Intelligent comprehensive distribution box with antitheft and dampproof functions |
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Application publication date: 20200825 |