Electric connection protection device
阅读说明:本技术 电连接保护装置 (Electric connection protection device ) 是由 李成力 张晓明 聂胜云 于 2020-07-07 设计创作,主要内容包括:本发明提供一种电连接保护装置,至少包括壳体和设置于壳体内的机芯组件,机芯组件包括控制电路板以及与控制电路板耦接的驱动组件、漏电检测组件以及输入输出组件。所述驱动组件至少包括第一驱动线圈和第二驱动线圈以及置于第一驱动线圈和第二驱动线圈内的驱动铁芯。初始状态下,驱动铁芯位于第一位置;当第一驱动线圈和第二驱动线圈中的一个工作时,驱动铁芯移动至第二位置以连通输入输出组件的电力连接;当第一驱动线圈和第二驱动线圈中的另一个工作时,驱动铁芯移动至第三位置以断开输入输出组件的电力连接。本发明通过提供两个驱动线圈,确保准确实施输入输出组件的电力连接的连通或断开,保证产品使用安全性。(The invention provides an electric connection protection device, which at least comprises a shell and a movement assembly arranged in the shell, wherein the movement assembly comprises a control circuit board, a driving assembly coupled with the control circuit board, an electric leakage detection assembly and an input/output assembly. The driving assembly at least comprises a first driving coil, a second driving coil and a driving iron core arranged in the first driving coil and the second driving coil. In an initial state, the driving iron core is located at a first position; when one of the first driving coil and the second driving coil works, the driving iron core moves to a second position to be communicated with the power connection of the input and output assembly; when the other of the first drive coil and the second drive coil operates, the drive core moves to a third position to disconnect the power connection of the input-output assembly. The invention ensures accurate connection or disconnection of the power connection of the input and output assembly by providing the two driving coils, and ensures the use safety of products.)
1. An electric connection protection device at least comprises a shell and a movement assembly arranged in the shell, wherein the movement assembly comprises a control circuit board (6), and a driving assembly (1), a leakage detection assembly (5) and an input and output assembly which are coupled with the control circuit board (6), and is characterized in that the driving assembly (1) at least comprises a first driving coil (121) and a second driving coil (122) and a driving iron core (14) arranged in the first driving coil (121) and the second driving coil (122);
in an initial state, the driving iron core (14) is located at a first position (A);
when one of the first driving coil (121) and the second driving coil (122) works, the driving iron core (14) moves to a second position (B) to communicate the power connection of the input and output assembly;
when the other of the first drive coil (121) and the second drive coil (122) is operated, the drive core (14) moves to a third position (C) to disconnect the power connection of the input-output assembly.
2. The electrical connection protection device according to claim 1, wherein the driver core (14) is reset from a second position (B) to the first position (a) after the electrical connection to the input-output assembly is connected, and the driver core (14) is reset from a third position (C) to the first position (a) after the electrical connection to the input-output assembly is disconnected, wherein the first position (a) is between the second position (B) and the third position (C).
3. The electrical connection protection device according to claim 1, characterized in that the drive assembly (1) further comprises a drive rod (15) cooperating with the drive core (14), and a driver (16) driven by the drive rod (15), the driver (16) being arranged pivotable about its pivot (161A, 161B) to connect or disconnect electrical connections of an input-output assembly.
4. The electrical connection protection device according to claim 3, wherein the driving assembly (1) further comprises a driving bracket (11) for receiving and connecting at least the driver (16), the driving bracket (11) being provided with pivot holes (110A, 110B) corresponding to the pivots (161A, 161B) of the driver (16).
5. The electrical connection protection device according to claim 3, wherein the driving rod (15) and the driving core (14) are connected to each other or formed as one body, wherein the driving core (14) is made of a metal material and the driving rod (15) is made of an insulating material.
6. The electrical connection protection device according to claim 4, characterized in that the drive assembly (1) further comprises an elastic assembly for holding the drive core (14) in the first position (A), the elastic assembly comprising a first spring (13) abutting against one end of the drive core (14), and a second spring (19) arranged on the drive rod (15), the acting forces of the first spring (13) and the second spring (19) being in opposite directions.
7. The electrical connection protection device according to claim 6, wherein the second spring (19) comprises a positioning end (192) and an acting end (191), the positioning end (192) is fixed by a positioning column (112) on the driving bracket (11), and the acting end (191) is embedded in a positioning hole (152) on the driving rod (15).
8. The electrical connection protection device according to claim 4, wherein the driving assembly (1) further comprises a latch (17) adapted to the actuator (16), the latch (17) being arranged to be pivotable about a pivot (171A, 171B) thereof for locking and unlocking the actuator (16), the driving bracket (11) being provided with pivot holes (111A, 111B) corresponding to the pivot (171A, 171B) of the latch (17).
9. The electrical connection protection device according to claim 8, wherein the latch (17) is arranged to hold the actuator (16) in a locked state when the actuator plunger (14) is moved to the second position (B) and to be pivoted by the actuator lever (15) to release the actuator (16) in an unlocked state when the actuator plunger (14) is moved to the third position (C); the lock catch (17) is pivoted and switched between the locking state and the unlocking state through an elastic limiting piece (18).
10. The electrical connection protection device according to any one of claims 3 to 9, wherein the input-output assembly comprises at least one pair of input contact arms (81, 82) and at least one pair of output contact arms (2, 3), each input contact arm (81, 82) being provided with an electrostatic contact (81A, 82A), each output contact arm (2, 3) being provided with an electrokinetic contact (2A, 3A) for cooperating with the electrostatic contact (81A, 82A), the actuator (16) being provided with an actuating arm (164) for urging the electrokinetic contact (2A, 3A) into or out of contact with the electrostatic contact (81A, 82A).
11. The electrical connection protection device according to claim 10, further comprising a thermal protection assembly comprising at least a thermally conductive sheet (81B, 82B) in contact with the input contact arm (81, 82) and a thermal protection switch (85).
12. The electrical connection protection device according to claim 10, wherein the input-output assembly further comprises a ground input contact arm (83) provided with an electrostatic contact (83A) and a ground output contact arm (4) provided with a galvanic contact (4A), the electrical leakage detection assembly (5) being provided with a hole (5A) for passing a current-carrying wire, and a recess (5B) for positioning the ground output contact arm (4).
Technical Field
The present invention relates generally to the electrical field, and more particularly to an electrical connection protection device.
Background
Along with the continuous improvement of the power utilization safety consciousness of people, in order to improve the power utilization safety, the electric connection protection device is more and more widely used, the application field and the use scene are continuously increased, and higher requirements are provided for the research and development and the manufacture of the electric connection protection device. The existing electric connection protection device generally uses a relay coil, when a product works normally, the coil is in a working state, the energy consumption is high, the temperature is increased, the cost is high, the coil can be damaged, and the service life of the electric connection device is shortened. Therefore, new electrical connection protection devices need to be designed to compensate for these drawbacks.
Disclosure of Invention
The invention aims to provide an electric connection protection device, which is improved based on the factors to be considered, so that the use safety is further improved, and the cost is reduced.
To this end, according to the present invention, there is provided an electrical connection protection device, comprising at least a housing and a core assembly disposed in the housing, the core assembly comprising a control circuit board, and a driving assembly, a leakage current detection assembly and an input-output assembly coupled to the control circuit board, wherein the driving assembly comprises at least a first driving coil and a second driving coil, and a driving core disposed in the first driving coil and the second driving coil; in an initial state, the driving iron core is located at a first position; when one of the first driving coil and the second driving coil works, the driving iron core moves to a second position to be communicated with the power connection of the input and output assembly; when the other of the first driving coil and the second driving coil operates, the driving iron core moves to a third position to disconnect the power connection of the input-output assembly.
The present invention may further include any one or more of the following alternatives according to the above technical idea.
In certain alternatives, the driver core is reset from the second position to the first position after power connection to the input-output assembly is turned on, and the driver core is reset from the third position to the first position after power connection to the input-output assembly is turned off, wherein the first position is between the second position and the third position.
In some alternatives, the drive assembly further comprises a drive rod cooperating with the drive core, and a driver driven by the drive rod, the driver being arranged to be pivotable about its pivot to connect or disconnect electrical connections to the input-output assembly.
In some alternatives, the drive assembly further comprises a drive bracket for receiving and connecting at least the driver, the drive bracket having a pivot hole corresponding to the pivot of the driver.
In some alternatives, the driving rod and the driving core are connected to or formed as one body, wherein the driving core is made of a metal material and the driving rod is made of an insulating material.
In some optional forms, the driving assembly further comprises an elastic assembly for keeping the driving iron core at the first position, the elastic assembly comprises a first spring abutting against one end of the driving iron core, and a second spring arranged on the driving rod, and the acting force directions of the first spring and the second spring are opposite.
In some optional forms, the second spring includes a positioning end and an acting end, the positioning end is fixed by a positioning column on the driving support, and the acting end is embedded into a positioning hole on the driving rod.
In some optional forms, the driving assembly further comprises a latch adapted to the driver, the latch being configured to be pivotable about a pivot thereof to lock and unlock the driver, and the driving bracket is provided with a pivot hole corresponding to the pivot of the latch.
In some alternatives, the latch is configured to hold the actuator in a locked state when the actuator plunger is moved to the second position, and to be pivoted by the actuator lever to release the actuator in an unlocked state when the actuator plunger is moved to the third position; the lock catch is pivoted and switched between the locking state and the unlocking state through the elastic limiting piece.
In certain alternatives, the input-output assembly includes at least one pair of input contact arms and at least one pair of output contact arms, each input contact arm being provided with an electrostatic contact, each output contact arm being provided with a dynamic electrical contact for mating with the electrostatic contact, the actuator being provided with an actuator arm that urges the dynamic electrical contact into and out of contact with the electrostatic contact.
In some alternatives, the electrical connection protection device further comprises a thermal protection assembly including at least a thermally conductive sheet in contact with the input contact arm and a thermal protection switch.
In certain alternatives, the input-output assembly further comprises a ground input contact arm provided with an electrostatic contact and a ground output contact arm provided with a galvanic contact, the electrical leakage detection assembly being provided with a hole for passing a current carrying wire and a recess for positioning the ground output contact arm.
The electric connection protection device ensures that the connection or disconnection of the electric connection of the input and output assembly is accurately implemented by providing the two driving coils, and ensures the use safety of products. The product has optimized layout, is easy to assemble, reduces cost, improves production and processing efficiency and has wide application.
Drawings
Other features and advantages of the present invention will be better understood by the following detailed description of alternative embodiments, taken in conjunction with the accompanying drawings, in which like characters represent the same or similar parts, and in which:
FIG. 1 is a schematic external view of an electrical connection protection device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a drive assembly of an electrical connection protection device according to one embodiment of the present invention;
FIG. 3 is an exploded schematic view of the electrical connection protection device of FIG. 1;
FIG. 4 is an exploded schematic view of a drive assembly of the electrical connection protection device of FIG. 2;
FIG. 5A is a schematic view of a perspective of a drive bracket of the electrical connection protection device of FIG. 4;
FIG. 5B is a schematic view of another perspective of the drive bracket of the electrical connection protection device of FIG. 4;
FIG. 6A is a schematic diagram of the operation of the electrical connection protection device of FIG. 2 after the driving assembly is turned on;
FIG. 6B is a schematic diagram of the electrical connection protection device of FIG. 2 after the drive assembly is disconnected;
FIG. 6C is a schematic diagram of the operation of the electrical connection protection device of FIG. 2 with the drive assembly turned on;
FIG. 6D is a schematic diagram of the electrical connection protection device of FIG. 2 with the drive assembly disconnected;
fig. 7 is a schematic circuit diagram of an electrical connection protection device according to an embodiment of the present invention.
Detailed Description
The practice and use of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention. The description herein of the structural positions of the respective components, such as the directions of upper, lower, top, bottom, etc., is not absolute, but relative. When the respective components are arranged as shown in the drawings, these direction expressions are appropriate, but when the positions of the respective components in the drawings are changed, these direction expressions are changed accordingly.
In this document, the terms "coupled" and "connected" should be interpreted broadly, e.g., "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.
In the illustrated embodiment, a plug is taken as an example, however it is understood that any other electrical connection protection device applicable to the inventive concept is not excluded.
Referring first to fig. 1, the electrical connection protection device of the present invention comprises a housing and a movement assembly disposed within the housing, and the housing may comprise a
As shown in fig. 2 and 3, the movement assembly includes a control circuit board (PCB)6, and a driving assembly 1, a
Referring to fig. 4, according to the concept of the present invention, the driving assembly 1 of the electrical connection protection device at least includes the
In some embodiments, the driving
In some embodiments, the
In order that the movement of the
As can be seen in fig. 4, the driving
The drive assembly 1 further comprises a
To achieve the above effect, the
As can also be seen in fig. 4, the drive assembly 1 further comprises an elastic assembly which holds the
In some embodiments, as shown in fig. 3, the leakage detecting member (CT)5 is provided with a
In some embodiments, L-
The operation of the electrical connection protection device of the present invention will be described with reference to fig. 6A to 7.
In the initial state or static state, the driving
When power is applied, the drive coil assembly SOL1 is energized, for example, the
When the leakage detection module CT detects L, N a leakage current, the CT transmits a detected leakage current signal to the processor U1. If the leakage current exceeds the predetermined value, the U1 sends a signal to turn on the thyristor Q2, so that the driving coil assembly SOL2 is energized, for example, the
It is to be understood that the embodiments shown in the figures merely show alternative shapes, sizes and arrangements of various alternative components of the electrical connection protection device according to the invention, which are, however, merely illustrative and not restrictive, and that other shapes, sizes and arrangements may also be adopted without departing from the spirit and scope of the invention.
While the technical content and the technical features of the invention have been disclosed, it is understood that various changes and modifications of the disclosed concept can be made by those skilled in the art within the spirit of the invention, and the invention is not limited thereto. The above description of embodiments is intended to be illustrative, and not restrictive, and the scope of the invention is defined by the appended claims.
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