CN213425774U - Residual current protection circuit breaker - Google Patents
Residual current protection circuit breaker Download PDFInfo
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- CN213425774U CN213425774U CN201921142895.7U CN201921142895U CN213425774U CN 213425774 U CN213425774 U CN 213425774U CN 201921142895 U CN201921142895 U CN 201921142895U CN 213425774 U CN213425774 U CN 213425774U
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Abstract
A residual current protection circuit breaker relates to the technical field of circuit breakers. The device comprises a central element, a detection element, a judgment element, an execution element and a power supply device, wherein the detection element, the judgment element, the execution element and the power supply device are all electrically connected with the central element; the detection element is used for detecting residual current of the line and the related electric equipment; the judging element is used for comparing the detected residual current with a preset value and sending a tripping signal when the residual current reaches or exceeds the preset value; the executive component is used for breaking a circuit to realize protection. After the technical scheme is adopted, the utility model discloses beneficial effect does: simple structure, use value is high, can prevent that the person from electric shock, electric fire and electrical equipment from damaging, can strengthen the security of circuit breaker, can prolong the life of circuit, improves work efficiency when can reduce cost.
Description
Technical Field
The utility model relates to a circuit breaker technical field, concretely relates to residual current protection circuit breaker.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition for a predetermined time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances.
The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. At present, it has been widely used.
Distribution of electricity is an extremely important link in the generation, transmission and use of electricity. 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 circuit breaker that is used for residual current protection on the existing market often has a complicated structure, the use value is not high, can't prevent the personal electric shock, electric fire and electrical equipment damage, can't directly provide contact electric shock protection and indirect contact electric shock protection, be difficult to can carry out overcurrent protection to building and similar circuit, can't provide the protection to probably arousing the conflagration because of overcurrent protection device does not move and continuously exist, can't strengthen the security of circuit breaker, be difficult to avoid because the electric spark sputtering that the voltage change speed leads to too fast, can't bring the safety guarantee for user's use, can't prolong the life of circuit, improve work efficiency when being difficult to reduce cost.
Disclosure of Invention
The utility model aims to solve the problems of the prior art, the utility model provides a residual current protection circuit breaker, moreover, the steam generator is simple in structure, the use value is high, can prevent the person electric shock, electric fire and electrical equipment damage, can directly provide contact electric shock protection and indirect contact electric shock protection, can carry out overcurrent protection to building and similar circuit, can provide the protection to lasting the conflagration that probably arouses because of overcurrent protection device does not act, can strengthen the security of circuit breaker, can avoid because the electric spark sputtering that the voltage variation speed leads to is too fast, can bring safety guarantee for user's use, can prolong the life of circuit, improve work efficiency when can reduce cost.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the residual current protection circuit breaker comprises a central element, a detection element, a judgment element, an execution element and a power supply device, wherein the detection element, the judgment element, the execution element and the power supply device are all electrically connected with the central element;
preferably, the detection element of the utility model is used for detecting the residual current of the circuit and the related electric equipment;
preferably, the discrimination element of the present invention is adapted to compare the detected residual current with a predetermined value, and to send a trip signal when the residual current reaches or exceeds the predetermined value;
preferably, the actuator of the present invention is used for breaking a circuit to realize protection.
Preferably, the central element of the present invention is a chip SF 54123.
Preferably, the utility model discloses a detecting element is residual current transformer, and the major loop that passes detecting element adopts the electronic component board.
Preferably, the detecting element of the present invention is electrically connected to the central element through an electronic signal amplifier.
Preferably, the discrimination element of the present invention is a residual current release, and the residual current release is a release type release.
Preferably, the actuator of the present invention is a circuit breaker.
Preferably, the power supply apparatus of the present invention comprises a plurality of voltage-stabilizing tubes and a current-stabilizing tube.
The utility model discloses a theory of operation: the residual current transformer is used for detecting the residual current of circuits and related electric equipment, the residual current tripper compares the detected residual current with a preset value, when the residual current reaches or exceeds the preset value, a tripping signal is sent out to disconnect the circuit of the circuit breaker, thereby realizing protection, the circuit breaker with the residual current protection is matched with a control switch, a storage battery, an input interface and an output interface for use, the safety of the circuit breaker is enhanced, electric spark sputtering caused by too fast voltage change speed is avoided, safety guarantee is brought to the use of a user, the service life of the circuit is prolonged, and the working efficiency is improved while the cost is reduced.
After the technical scheme is adopted, the utility model discloses beneficial effect does: simple structure, high use value, can prevent the personal electric shock, electric fire and electrical equipment damage, can directly provide contact electric shock protection and indirect contact electric shock protection, can carry out overcurrent protection to building and similar circuit, can provide the protection to probably arousing the conflagration because of overcurrent protection device does not act and continuously exists, can strengthen the security of circuit breaker, can avoid because the electric spark sputtering that the voltage variation speed leads to too fast, can bring the safety guarantee for user's use, can prolong the life of circuit, can improve work efficiency when reduce cost.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic block diagram of the circuit principle of the present invention.
Description of reference numerals: a center element 1, a detection element 2, a discrimination element 3, an actuator 4, a power supply device 5, and an electronic signal amplifier 21.
Detailed Description
Referring to the drawings, the technical scheme adopted by the specific embodiment is as follows: the residual current protection circuit breaker comprises a central element 1, a detection element 2, a judgment element 3, an execution element 4 and a power supply device 5, wherein the detection element 2, the judgment element 3, the execution element 4 and the power supply device 5 are all electrically connected with the central element 1;
as shown in fig. 1, the detecting element 2 of the present invention is used for detecting the residual current of the circuit and the related electric devices;
as shown in fig. 1, the discrimination element 3 of the present invention is used to compare the detected residual current with a predetermined value, and when the residual current reaches or exceeds the predetermined value, a trip signal is sent;
as shown in fig. 1, the actuator 4 of the present invention is used to break a circuit and achieve protection.
As shown in fig. 1, the central element 1 of the present invention is a chip SF 54123. The space occupied by the electronic components is reduced.
As shown in fig. 1, the detecting element 2 of the present invention is a residual current transformer, and the main circuit passing through the detecting element 2 adopts an electronic component board. The electronic component board is adopted to reduce the length of the circuit breaker, so that the circuit breaker is small in size.
As shown in fig. 1, the detecting element 2 of the present invention is electrically connected to the central element 1 through an electronic signal amplifier 21.
As shown in fig. 1, the discrimination element 3 of the present invention is a residual current release, and the residual current release is a release type release. The magnetic field is used for overcoming the attraction force of the permanent magnet to release the iron core, the required tripping energy is small, the working voltage of the coil is low, and the magnetic field can bear the working voltage for a long time.
As shown in fig. 1, the actuator 4 of the present invention is a circuit breaker.
As shown in fig. 1, the power supply apparatus 5 of the present invention is composed of a plurality of voltage-stabilizing tubes and a current-stabilizing tube. In order to ensure the stability of leakage action current and action time, a plurality of voltage-stabilizing tubes and current-stabilizing tubes are adopted, and the anti-interference capability of the circuit breaker is improved.
The utility model discloses a theory of operation: the residual current transformer is used for detecting the residual current of circuits and related electric equipment, the residual current tripper compares the detected residual current with a preset value, when the residual current reaches or exceeds the preset value, a tripping signal is sent out to disconnect the circuit of the circuit breaker, thereby realizing protection, the circuit breaker with the residual current protection is matched with a control switch, a storage battery, an input interface and an output interface for use, the safety of the circuit breaker is enhanced, electric spark sputtering caused by too fast voltage change speed is avoided, safety guarantee is brought to the use of a user, the service life of the circuit is prolonged, and the working efficiency is improved while the cost is reduced.
After the technical scheme is adopted, the utility model discloses beneficial effect does: simple structure, high use value, can prevent the personal electric shock, electric fire and electrical equipment damage, can directly provide contact electric shock protection and indirect contact electric shock protection, can carry out overcurrent protection to building and similar circuit, can provide the protection to probably arousing the conflagration because of overcurrent protection device does not act and continuously exists, can strengthen the security of circuit breaker, can avoid because the electric spark sputtering that the voltage variation speed leads to too fast, can bring the safety guarantee for user's use, can prolong the life of circuit, can improve work efficiency when reduce cost.
The residual current protection circuit breaker obtains 2 national mandatory product authentication test reports through detection and authentication: product name residual current protection circuit breaker, report serial number: C-14201-DC 171531; report number: C-14201-DC 171530.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (1)
1. Residual current protection circuit breaker, its characterized in that: the device comprises a central element (1), a detection element (2), a judgment element (3), an execution element (4) and a power supply device (5), wherein the detection element (2), the judgment element (3), the execution element (4) and the power supply device (5) are electrically connected with the central element (1);
the detection element (2) is used for detecting residual current of a line and related electric equipment;
the discrimination element (3) is used for comparing the detected residual current with a preset value and sending a tripping signal when the residual current reaches or exceeds the preset value;
the executive component (4) is used for disconnecting the circuit and realizing protection;
the model of the central element (1) is chip SF 54123;
the detection element (2) is a residual current transformer, and a main loop penetrating through the detection element (2) adopts an electronic element board;
the detection element (2) is electrically connected with the central element (1) through an electronic signal amplifier (21);
the judging element (3) is a residual current release, and the residual current release is a release type release;
the actuating element (4) is a circuit breaker;
the power supply device (5) is composed of a plurality of voltage-stabilizing tubes and current-stabilizing tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921142895.7U CN213425774U (en) | 2019-07-20 | 2019-07-20 | Residual current protection circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921142895.7U CN213425774U (en) | 2019-07-20 | 2019-07-20 | Residual current protection circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213425774U true CN213425774U (en) | 2021-06-11 |
Family
ID=76222827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921142895.7U Active CN213425774U (en) | 2019-07-20 | 2019-07-20 | Residual current protection circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213425774U (en) |
-
2019
- 2019-07-20 CN CN201921142895.7U patent/CN213425774U/en active Active
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