CN110391639A - One kind being based on servo-controlled overcurrent circuit protection device - Google Patents
One kind being based on servo-controlled overcurrent circuit protection device Download PDFInfo
- Publication number
- CN110391639A CN110391639A CN201910655172.5A CN201910655172A CN110391639A CN 110391639 A CN110391639 A CN 110391639A CN 201910655172 A CN201910655172 A CN 201910655172A CN 110391639 A CN110391639 A CN 110391639A
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- permanent magnet
- circuit
- electricity pole
- negative electricity
- metal tube
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- 230000005611 electricity Effects 0.000 claims abstract description 53
- 239000002184 metal Substances 0.000 claims abstract description 45
- 230000001681 protective effect Effects 0.000 claims abstract description 25
- 230000005389 magnetism Effects 0.000 claims abstract description 11
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 14
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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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- Emergency Protection Circuit Devices (AREA)
- Thermistors And Varistors (AREA)
Abstract
The invention belongs to circuit protection technical fields, it discloses a kind of based on servo-controlled overcurrent circuit protection device, including adjusting circuit and protective switch, the adjusting circuit includes slide rheostat, alarm lamp and relay, when use, coil is connect with external power supply, it is electrically connected after coil wrapping metal tube multiturn with negative electricity pole piece, anode electrode piece is fixedly connected on permanent magnet, anode electrode piece is slidably connected with negative electricity pole piece, when the electric current on coil is excessive, the magnetism that metal tube both ends generate can also become larger, it will push permanent magnet to slide to one end far from metal tube, until anode electrode piece and negative electricity pole piece are detached to form open circuit, it avoids electric current and crosses macrolesion circuit, protective switch and slide rheostat series connection, the magnetic size that resistance sizes adjust metal tube can be changed by slide rheostat, pass through to adjust Current range, the circuit protection device of different model is needed replacing when avoiding user's current range, the problem of being inconvenient.
Description
Technical field
The invention belongs to circuit protection technical fields, more particularly to one kind to be filled based on servo-controlled overcurrent circuit protection
It sets.
Background technique
Overcurrent circuit protection device is that one kind avoids electric current in circuit excessive, causes one kind of mechanical or element open circuit damage
Device can automatically disconnect the circuit the electric connection with external power supply when short circuit occurs in circuit or electric current is excessive.
Circuit protection device in the market is mostly by factory settings protection scope, and structure is complicated, and user can not be according to autonomous
Need to adjust, the circuit protection device of different model is needed replacing when user needs to adjust protection scope, using very not
It is convenient.
Summary of the invention
The present invention provides a kind of based on servo-controlled overcurrent circuit protection device, it is intended to solve circuit protection in the market
Device is mostly by factory settings protection scope, and structure is complicated, and user can not need to adjust according to autonomous, when user needs to adjust
The circuit protection device that different model is needed replacing when protection scope uses inconvenient problem.
The invention is realized in this way a kind of be based on servo-controlled overcurrent circuit protection device, including adjust circuit and
Protective switch, the adjusting circuit include slide rheostat, alarm lamp and relay, the slide rheostat and the relay
It is connected in series, and is connected in parallel in circuit about the alarm lamp；
The protective switch includes fixed plate, metal tube, coil, negative electricity pole piece, permanent magnet, slip pipe and anode electrode
Piece, the protective switch and the slide rheostat are connected in series in circuit, and the metal tube is fixedly connected on the fixation
Intralamellar part, the coil are wrapped in the outer surface of the metal tube, and the negative electricity pole piece is fixedly connected on the fixed plate
Outer surface, and be electrically connected with the coil, the permanent magnet is located at the slider tube, and is slidably connected with the slip pipe,
The anode electrode piece is fixedly connected on the permanent magnet close to one end of the negative electricity pole piece.
Preferably, the adjusting circuit further includes fixed value resistance, and the fixed value resistance is connected with the alarm lamp, and with institute
Protective switch is stated to be connected in parallel in circuit.
Preferably, the protective switch further includes pedestal and support rod, and the pedestal is located at the support rod bottom, and with
The support rod is fixedly connected, and the quantity of the support rod is two, and the fixed plate and the slip pipe pass through two institutes respectively
Support rod is stated to be fixedly connected with the base.
Preferably, the rounded tubular structure of the metal tube, the coil are wound with more in the outer surface of the metal tube
Layer.
Preferably, the anode electrode piece is stuck in the appearance of two negative electricity pole pieces far from one end of the permanent magnet
Face, and be slidably connected with the negative electricity pole piece.
Preferably, the negative electricity pole piece is L-shape, and the described one end of negative electricity pole piece far from the permanent magnet is to close to institute
The diameter for stating one end of permanent magnet is sequentially reduced.
Preferably, the relay is connected with external power source one end ground connection, for protecting circuit.
Preferably, the metal tube is identical as the magnetism of the adjacent one end of the permanent magnet.
Compared with prior art, the beneficial effects of the present invention are: one kind of the invention crosses current circuit based on servo-controlled
Protective device, by setting slide rheostat, metal tube, coil, permanent magnet, negative electricity pole piece and anode electrode piece, in use,
Coil is connect with external power supply, is electrically connected after coil wrapping metal tube multiturn with negative electricity pole piece, it is fixed on permanent magnet to connect
It is connected to anode electrode piece, anode electrode piece is slidably connected with negative electricity pole piece, when the electric current on coil is excessive, metal tube both ends
The magnetism of generation can also become larger, and will push permanent magnet and slide to one end far from metal tube, until anode electrode piece and negative electricity
Pole piece is detached to form open circuit, avoids electric current and crosses macrolesion circuit, protective switch and slide rheostat series connection, can be become by sliding
It hinders device and changes the magnetic size that resistance sizes adjust metal tube, so that the current range that adjusting passes through, avoids user's electric current model
The circuit protection device that different model is needed replacing when enclosing, the problem of being inconvenient.
It should be understood that the above is a preferred embodiment of the present invention, it is noted that for the art
For those of ordinary skill, various improvements and modifications may be made without departing from the principle of the present invention, these improvement
Also it is considered as protection scope of the present invention with retouching.
Detailed description of the invention
Fig. 1 is protective switch schematic diagram of the invention；
Fig. 2 is adjusting circuit diagram of the invention；
Fig. 3 is connection schematic diagram of the invention.
In figure: 1, adjusting circuit；11, slide rheostat；12, fixed value resistance；13, alarm lamp；14, relay；2, it protects
Switch；21, fixed plate；22, metal tube；23, coil；24, negative electricity pole piece；25, permanent magnet；26, slip pipe；27, anode electrode
Piece；28, pedestal；29, support rod.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.In addition, in the description of the present invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
Please refer to Fig. 1-3, the present invention provides a kind of scheme: one kind is based on servo-controlled overcurrent circuit protection device, packet
It includes and adjusts circuit 1 and protective switch 2, adjusting circuit 1 includes slide rheostat 11, alarm lamp 13 and relay 14, slides variable resistance
Device 11 and relay 14 are connected in series, and are connected in parallel in circuit about alarm lamp 13；
Protective switch 2 includes fixed plate 21, metal tube 22, coil 23, negative electricity pole piece 24, permanent magnet 25,26 and of slip pipe
Anode electrode piece 27, protective switch 2 and slide rheostat 11 are connected in series in circuit, and metal tube 22 is fixedly connected on fixed plate
Inside 21, coil 23 is wrapped in the outer surface of metal tube 22, and negative electricity pole piece 24 is fixedly connected on the outer surface of fixed plate 21, and
It is electrically connected with coil 23, permanent magnet 25 is located inside slip pipe 26, and is slidably connected with slip pipe 26, and anode electrode piece 27 is fixed to be connected
Permanent magnet 25 is connected to close to one end of negative electricity pole piece 24.
In the present embodiment, metal tube 22 is equipped with inside fixed plate 21, the outer surface of metal tube 22 is wound with multiturn line
Circle 23, the output end of coil 23 is electrically connected with the negative electricity pole piece 24 for being fixedly connected on 21 outer surface of fixed plate, in slip pipe 26
Portion slidably connects permanent magnet 25, and metal tube 22 is identical as the magnetism of the adjacent one end of permanent magnet 25, and permanent magnet 25 and metal
The adjacent one end of pipe 22 is fixedly connected with anode electrode piece 27, and the outer surface of fixed plate 21 is fixedly connected with negative electricity pole piece 24,
The diameter of the one end of negative electricity pole piece 24 far from permanent magnet 25 to one end close to permanent magnet 25 is sequentially reduced, anode electrode piece 27
Be clamped in the outer surface of negative electricity pole piece 24, when in circuit electric current increase, i.e., when the electric current on coil 23 becomes larger, coil 23 with
The magnetic enhancement for the energization solenoid that metal tube 22 collectively constitutes will push permanent magnet 25 along cunning according to the principle that identical charges repel each other
To its internal slide, permanent magnet 25 is mobile to be will drive anode electrode piece 27 and moves right pipe 26, straight due to negative electricity pole piece 24
Diameter is from left to right sequentially reduced, and increases the resistance of negative electricity pole piece 24, and the shunt resistance generated by negative electricity pole piece 24 is kept away
Exempt from that electric current in circuit is excessive, has burnt mechanical problem, when current is excessive, the magnetism on energization solenoid further increases,
It pushes permanent magnet 25 to continue to move right, until anode electrode piece 27 is separated with negative electricity pole piece 24, forms open circuit at this time, avoid
Electric current is excessive to burn machinery.
In the present embodiment, in use, protective switch 2 is connect with mechanical series, and pedestal 28 is fixed on machinery
On, the top of pedestal 28 is fixedly connected there are two support rod 29, and the top of two support rods 29 is fixedly connected with fixed plate respectively
21 and slip pipe 26, metal tube 22 is equipped with inside fixed plate 21, and the outer surface of metal tube 22 is wound with multiturn coil 23, coil 23
Output end is electrically connected with the negative electricity pole piece 24 for being fixedly connected on 21 outer surface of fixed plate, and 26 internal slide of slip pipe is connected with forever
Magnet 25, metal tube 22 is identical as the magnetism of the adjacent one end of permanent magnet 25, and one end that permanent magnet 25 is adjacent with metal tube 22
It is fixedly connected with anode electrode piece 27, the outer surface of fixed plate 21 is fixedly connected with negative electricity pole piece 24, and negative electricity pole piece 24 is remote
The diameter of one end to one end close to permanent magnet 25 from permanent magnet 25 is sequentially reduced, and anode electrode piece 27 is clamped in negative electrode
The outer surface of piece 24, when in circuit electric current increase, i.e., when the electric current on coil 23 becomes larger, coil 23 with 22 common groups of metal tube
At energization solenoid magnetic enhancement, according to the principle that identical charges repel each other, will push permanent magnet 25 along slip pipe 26 to its inside it is sliding
Dynamic, permanent magnet 25 is mobile to be will drive anode electrode piece 27 and moves right, due to negative electricity pole piece 24 diameter from left to right successively
Reduce, increase the resistance of negative electricity pole piece 24, the shunt resistance generated by negative electricity pole piece 24 avoids electric current in circuit
It is excessive, burn mechanical problem, when current is excessive, the magnetism on energization solenoid further increases, push permanent magnet 25 after
It is continuous to move right, until anode electrode piece 27 is separated with negative electricity pole piece 24, formed at this time breaking, avoids that electric current is excessive to be burnt
Machinery, the both ends of protective switch 2 are also connected in parallel to alarm lamp 13, and alarm lamp 13 is connected with fixed value resistance 12, work as anode electrode
After piece 27 and negative electricity pole piece 24 disconnect formation open circuit, electric current can not pass through, then circulated by fixed value resistance 12, by alarm lamp 13
It accesses in circuit, alarm lamp 13 flashes alarm immediately, reminds user, and protective switch 2 is also in series with slide rheostat 11, passes through cunning
Dynamic rheostat 11 changes circuital current, i.e., the magnetic size on controllable energization solenoid, consequently facilitating user adjusts electric current
Range avoids and needs replacing circuit protection device in traditional approach, inconvenient problem.
Further, adjust circuit 1 further include fixed value resistance 12, fixed value resistance 12 is connected with alarm lamp 13, and with protection
Switch 2 is connected in parallel in circuit.
In the present embodiment, fixed value resistance 12 is connected with alarm lamp 13, and is connected in parallel in circuit with protective switch 2
In, electric current is circulated by protective switch 2 when being closed protective switch 2, forms closed circuit, makes mechanical energization, and protective switch 2 is disconnected
It opens rear electric current to connect by fixed value resistance 12 with alarm lamp 13, flashes alarm lamp 13, electric current is excessive in notice subscriber's line circuit leads
Protective switch 2 is caused to disconnect.
Further, protective switch 2 further includes pedestal 28 and support rod 29, and pedestal 28 is located at 29 bottom of support rod, and with
Support rod 29 is fixedly connected, and the quantity of support rod 29 is two, fixed plate 21 and slip pipe 26 respectively by two support rods 29 with
Pedestal 28 is fixedly connected.
In the present embodiment, pedestal 28 and support rod 29 are set, is used to support fixed plate 21 and slip pipe 26, makes permanent magnet
25 can slide in 26 inner horizontal of slip pipe, to control the mechanical connection situation with external power supply.
Further, the rounded tubular structure of metal tube 22, coil 23 are wound with multilayer in the outer surface of metal tube 22.
In the present embodiment, metal tube 22 is arranged to round tubular structure, coil 23 is in the outer surface of metal tube 22
It is wound with multilayer, makes that energization solenoid structure is collectively formed between metal tube 22 and coil 23, the electric current inside coil 23 increases
When big, increase the magnetic of energization solenoid, to push permanent magnet 25 far from metal tube 22, be arranged just when on permanent magnet 25
The negative electricity pole piece 24 being arranged on pole electrode slice 27 and fixed plate 21 separates, then forms open circuit, avoid electric current is excessive from leading to machinery
It is impaired.
Further, anode electrode piece 27 is stuck in the outer surface of two negative electricity pole pieces 24 far from one end of permanent magnet 25,
And it is slidably connected with negative electricity pole piece 24.
In the present embodiment, anode electrode piece 27 is stuck in two negative electricity pole pieces 24 far from one end of permanent magnet 25
Outer surface, and be slidably connected with negative electricity pole piece 24, when contacting anode electrode piece 27 and negative electricity pole piece 24, it is capable of forming and closes
Circuit is closed, machine work is driven, forms open circuit when anode electrode piece 27 is separated with negative electricity pole piece 24, protection is mechanical.
Further, negative electricity pole piece 24 is L-shape, and the one end of negative electricity pole piece 24 far from permanent magnet 25 is to close to permanent magnet
The diameter of 25 one end is sequentially reduced.
In the present embodiment, the one end of negative electricity pole piece 24 far from permanent magnet 25 to one end close to permanent magnet 25 is straight
Diameter is sequentially reduced, and successively increases the resistance on negative electricity pole piece 24 from left to right, for distinguished and admirable, avoids the electric current mistake in circuit
Greatly machinery is caused to damage.
Further, relay 14 is connected with external power source one end ground connection, for protecting circuit.
In the present embodiment, relay 14 is connected with external power source one end ground connection, for protecting circuit, avoids producing
Raw tripping hazard.
Further, metal tube 22 is identical as the magnetism of the adjacent one end of permanent magnet 25.
In the present embodiment, metal tube 22 is identical as the magnetism of the adjacent one end of permanent magnet 25, makes metal tube 22 and line
The energization solenoid structure that circle 23 collectively constitutes can work as electricity by magnetic force moving permanent magnet 25 far from metal tube 22 after powered up
Intensity of flow is bigger, then the magnetism on energization solenoid is stronger, when electric current exceeds setting range, is then electrically connected with coil 23
Negative electricity pole piece 24 is separated with anode electrode piece 27, is formed open circuit, is avoided the electric current in circuit is excessive from causing to damage to machinery.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (8)
1. one kind is based on servo-controlled overcurrent circuit protection device, including adjusts circuit (1) and protective switch (2), feature
It is, the adjusting circuit (1) includes slide rheostat (11), alarm lamp (13) and relay (14), the slide rheostat
(11) it is connected in series with the relay (14), and is connected in parallel in circuit about the alarm lamp (13)；
The protective switch (2) includes fixed plate (21), metal tube (22), coil (23), negative electricity pole piece (24), permanent magnet
(25), slip pipe (26) and anode electrode piece (27), the protective switch (2) and the slide rheostat (11) are connected in series in electricity
Lu Zhong, the metal tube (22) are fixedly connected on the fixed plate (21) inside, and the coil (23) is wrapped in the metal tube
(22) outer surface, the negative electricity pole piece (24) are fixedly connected on the outer surface of the fixed plate (21), and with the coil
(23) it is electrically connected, it is internal that the permanent magnet (25) is located at the slip pipe (26), and is slidably connected with the slip pipe (26), described
Anode electrode piece (27) is fixedly connected on the one end of the permanent magnet (25) close to the negative electricity pole piece (24).
2. as described in claim 1 a kind of based on servo-controlled overcurrent circuit protection device, which is characterized in that the adjusting
Circuit (1) further includes fixed value resistance (12), and the fixed value resistance (12) is connected with the alarm lamp (13), and is opened with the protection
(2) are closed to be connected in parallel in circuit.
3. as described in claim 1 a kind of based on servo-controlled overcurrent circuit protection device, which is characterized in that the protection
Switch (2) further includes pedestal (28) and support rod (29), and the pedestal (28) is located at the support rod (29) bottom, and with it is described
Support rod (29) is fixedly connected, and the quantity of the support rod (29) is two, the fixed plate (21) and the slip pipe (26) point
Not Tong Guo two support rods (29) be fixedly connected with the pedestal (28).
4. as described in claim 1 a kind of based on servo-controlled overcurrent circuit protection device, which is characterized in that the metal
(22) rounded tubular structure is managed, the coil (23) is wound with multilayer in the outer surface of the metal tube (22).
5. as described in claim 1 a kind of based on servo-controlled overcurrent circuit protection device, which is characterized in that the cathode
Electrode slice (24) is stuck in the outer surfaces of two negative electricity pole pieces (24) far from the one end of the permanent magnet (25), and with it is described
Negative electricity pole piece (24) is slidably connected.
6. as described in claim 1 a kind of based on servo-controlled overcurrent circuit protection device, which is characterized in that the cathode
Electrode slice (24) is L-shape, and the one end of the anode electrode piece (27) far from the permanent magnet (25) is to close to the permanent magnet
(25) diameter of one end is sequentially reduced.
7. as described in claim 1 a kind of based on servo-controlled overcurrent circuit protection device, which is characterized in that the relay
Device (14) is connected with external power source one end ground connection, for protecting circuit.
8. as described in claim 1 a kind of based on servo-controlled overcurrent circuit protection device, which is characterized in that the metal
It is identical as the adjacent magnetism of one end of the permanent magnet (25) to manage (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910655172.5A CN110391639B (en) | 2019-07-19 | 2019-07-19 | Overcurrent circuit protection device based on servo control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910655172.5A CN110391639B (en) | 2019-07-19 | 2019-07-19 | Overcurrent circuit protection device based on servo control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110391639A true CN110391639A (en) | 2019-10-29 |
| CN110391639B CN110391639B (en) | 2024-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910655172.5A Active CN110391639B (en) | 2019-07-19 | 2019-07-19 | Overcurrent circuit protection device based on servo control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110391639B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113001912A (en) * | 2021-02-22 | 2021-06-22 | 邱观丽 | Automatic injection mold clamping device of control |
| CN113937727A (en) * | 2021-10-20 | 2022-01-14 | 傲普(上海)新能源有限公司 | Relay integrated circuit with pre-charging and short-circuit protection functions |
| CN116130264A (en) * | 2023-04-12 | 2023-05-16 | 成都工业职业技术学院 | Automatic alarm cutting device and early warning method for variable frequency cabinet |
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| CN202067716U (en) * | 2011-05-12 | 2011-12-07 | 东北大学 | Double-fluid circuit breaker capable of realizing remote control by using electromagnet |
| KR20160143141A (en) * | 2015-06-04 | 2016-12-14 | 엘에스산전 주식회사 | Fast Switch |
| CN208336105U (en) * | 2018-06-21 | 2019-01-04 | 国网黑龙江省电力有限公司佳木斯供电公司 | A kind of alarm relay protective device |
| CN210123886U (en) * | 2019-07-19 | 2020-03-03 | 江苏阆达机械有限公司 | Overcurrent circuit protection device based on servo control |
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2019
- 2019-07-19 CN CN201910655172.5A patent/CN110391639B/en active Active
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| KR100798340B1 (en) * | 2006-12-29 | 2008-01-28 | 엘에스산전 주식회사 | Molded case circuit breaker with limit current function |
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| KR20160143141A (en) * | 2015-06-04 | 2016-12-14 | 엘에스산전 주식회사 | Fast Switch |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113001912A (en) * | 2021-02-22 | 2021-06-22 | 邱观丽 | Automatic injection mold clamping device of control |
| CN113937727A (en) * | 2021-10-20 | 2022-01-14 | 傲普(上海)新能源有限公司 | Relay integrated circuit with pre-charging and short-circuit protection functions |
| CN116130264A (en) * | 2023-04-12 | 2023-05-16 | 成都工业职业技术学院 | Automatic alarm cutting device and early warning method for variable frequency cabinet |
| CN116130264B (en) * | 2023-04-12 | 2023-07-18 | 成都工业职业技术学院 | Automatic alarm cutting device and early warning method for variable frequency cabinet |
Also Published As
| Publication number | Publication date |
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| CN110391639B (en) | 2024-03-08 |
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