CN219873376U - Test structure of leakage protection module - Google Patents
Test structure of leakage protection module Download PDFInfo
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- CN219873376U CN219873376U CN202320059771.2U CN202320059771U CN219873376U CN 219873376 U CN219873376 U CN 219873376U CN 202320059771 U CN202320059771 U CN 202320059771U CN 219873376 U CN219873376 U CN 219873376U
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- 230000005611 electricity Effects 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 8
- 230000008602 contraction Effects 0.000 claims description 3
- 230000003068 static effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
Abstract
The utility model relates to a test structure of a leakage protection module, which comprises an electromagnetic release, a test button for controlling the on-off of a test circuit, and further comprises: the switching-on/off operation assembly is provided with a moving contact for conducting electricity; the fixed contact is used for being electrically connected with one group of input ends of the main circuit; the static contact is located on a path of rotation of the moving contact along a closing direction, the electromagnetic release is located on a path of rotation of the opening and closing operation assembly along the closing direction, and the electromagnetic release is used for releasing the opening and closing operation assembly when the test circuit is conducted. The utility model has the advantages that the utility model is compatible with the electronic type leakage circuit breaker and the electromagnetic type leakage circuit breaker, and can protect the internal circuit board and the tripping coil for the electronic type, and realize the function of unrestricted wire inlet.
Description
Technical Field
The utility model relates to the field of circuit breakers, in particular to a test structure of a leakage protection module.
Background
The leakage protection circuit breaker has the function of being capable of rapidly cutting off a power supply circuit when electric shock of a human body or electric leakage of equipment occurs, so that the human body and the equipment are prevented from being damaged, and the type of the current leakage protection circuit breaker mainly comprises an electronic type and an electromagnetic type. The leakage protection module for the leakage protection mainly comprises a zero sequence current transformer and an electromagnetic release, and when the zero sequence current transformer detects that the current vector sum between the incoming line end and the outgoing line end in the main circuit is not 0, the leakage condition of the main circuit is indicated. At the moment, the zero sequence current transformer generates induced voltage so as to control the electromagnetic release to realize the release action.
In order to detect whether the electromagnetic release of the leakage protection module can normally act, a test circuit for electrically connecting the zero sequence current transformer with the electromagnetic release is generally arranged, a test button for controlling the on-off of the test circuit is arranged on the test circuit, and a user tests the leakage protection performance of the leakage protection module by pressing the test button at regular intervals. For the above-mentioned earth leakage protection module, when main circuit is in the brake state, if will test the button and press again, test circuit still forms complete return circuit, if the inside circuit board is not completely separated with the power at this moment, to electronic earth leakage protection circuit breaker, will produce harmful effect to inside circuit board and the tripping coil of main circuit.
Disclosure of Invention
In order to further improve the protection effect on the electronic leakage protection circuit breaker when the main circuit is in the opening state, the utility model provides a test structure of a leakage protection module.
The utility model provides a test structure of a leakage protection module, which adopts the following technical scheme:
the utility model provides a test structure of earth leakage protection module, including electromagnetic release and be used for the test button of control test circuit break-make, still including:
the switching-on/off operation assembly is provided with a moving contact for conducting electricity;
the fixed contact is used for being electrically connected with one group of input ends of the main circuit; the fixed contact is positioned on a path of the moving contact rotating along the closing direction and is used for being in contact with the moving contact;
the electromagnetic release is positioned on a path of the opening and closing operation assembly rotating along the closing direction, and the electromagnetic release is used for releasing the opening and closing operation assembly when the test circuit is conducted.
By adopting the technical scheme, when the electric leakage test is required, the test circuit is switched on through the switching-on/off operation assembly, so that the moving contact and the fixed contact are kept in a mutually contacted state; at the moment, the test circuit can be conducted by pressing the test button, and then the electromagnetic release can release the opening and closing operation assembly to realize opening and closing; through setting up moving contact and static contact and can divide out test circuit when breaking off, can compatible electron type electric leakage circuit breaker and electromagnetic type electric leakage circuit breaker on the one hand, to the electronic type, can also protect inner circuit board and tripping coil, and realize the unrestricted function of inlet wire.
Optionally, the method further comprises the following steps:
the disengaging fastener is arranged on the opening and closing operation assembly;
the push plate is arranged between the trip piece and the triggering end of the electromagnetic trip, the push plate is positioned on a path of the trip piece along the rotation of the closing direction, and the triggering end of the electromagnetic trip is used for pushing the push plate to abut against the trip piece and separating the opening and closing operation assembly.
Through adopting above-mentioned technical scheme, when the electromagnetic release trigger takes place the trip action, can make electromagnetic release trigger more smooth promotion trip piece through the push pedal, finally ensure that divide-shut brake operation subassembly can be quick and smooth accomplish the trip action in order to realize the separating brake.
Optionally, a bending part is arranged on the push plate, and a limiting hole for limiting the push plate is formed in the bending part.
Through adopting above-mentioned technical scheme, when installing the push pedal, can establish the push pedal on shells inner wall's spacing post through the spacing hole cover that sets up on the kink, just can install the push pedal on shells inside wall smoothly this moment, can also ensure in addition that the push pedal swings in the casing, makes the push pedal promote the release smoothly and realizes breaking and closing operation subassembly and break the floodgate.
Optionally, the push plate is bent towards the side wall of the release member towards the direction close to the release member, and an abutting portion is formed.
Through adopting above-mentioned technical scheme, the interval between push pedal and the release can be reduced to conflict portion to when making the push pedal take place the swing under electromagnetic release drive, the release that can be more sensitive and quick completion divide-shut brake operation subassembly breaks off and breaks brake.
Optionally, the method further comprises the following steps:
the first spring is arranged on the test button and is used for resetting the test button when the test button is pressed; the first spring is connected with a first conductive piece, and the first conductive piece moves synchronously along with the expansion and contraction of the first spring.
By adopting the technical scheme, the first spring is used for resetting the test button, and when the test button is pressed down, the first conductive piece moves down along with the compression of the first spring, so that the test circuit is finally conducted; when the external force applied to the test button is removed, the first conductive piece moves upwards along with the reset of the first spring, so that the test circuit is disconnected; the first conductive element will form a second break point of the test circuit.
Optionally, a limiting groove is formed in a side wall, facing the first conductive piece, of the test button, and the first conductive piece is embedded in the limiting groove.
By adopting the technical scheme, the first conductive piece is embedded in the limit groove, so that on one hand, the limit fixation between the first conductive piece and the test button is realized, and on the other hand, the limit fixation between the first spring and the test button is also realized; in addition, the first spring and the first conductive piece can be limited to rotate on the test button, so that the moving path of the first conductive piece is ensured, and the stability of the first conductive piece is improved.
Optionally, the method further comprises the following steps:
the second conductive piece is positioned between the moving contact and the first conductive piece; one end of the second conductive piece is connected with the moving contact, and the other end of the second conductive piece is positioned on the pressing path of the first conductive piece.
By adopting the technical scheme, the second conductive piece will form a third breakpoint of the test circuit, and when the test button is pressed, the first conductive piece will be in contact with the second conductive piece, and at the moment, the first conductive piece, the second conductive piece and the moving contact are connected.
Optionally, the method further comprises the following steps:
one end of the third conductive sheet is positioned on the pressing path of the first conductive piece and is used for being in contact with the first conductive piece in a pressing state; the other end of the third conducting strip is electrically connected with one group of input ends of the main circuit.
Through adopting above-mentioned technical scheme, the third electrically conductive piece will form the fourth breakpoint of test circuit, when pressing test button, first electrically conductive piece still will contact with the third electrically conductive piece finally, first electrically conductive piece, second electrically conductive piece, moving contact and the fourth of third electrically conductive piece will be put through this moment, through setting up many breakpoints, thereby can be in the lifting state or divide-shut brake operating assembly when breaking brake state at test button, further promote the protection effect to test circuit, realize positive and negative inlet wire function, effectively prevent the electronic circuit damage.
Optionally, the third conducting strip is formed with conductive contact piece towards the lateral wall bending of first conducting piece, the laminating of third conducting strip and electromagnetic release lateral wall, the third conducting strip is spacing outside electromagnetic release through conductive contact piece.
Through adopting above-mentioned technical scheme, the conductive contact piece has increased the area of contact of third conducting strip, can contact smoothly with the third conducting strip when having ensured that first conducting piece moves down, can also be with the third conducting strip spacing outside electromagnetic release through the conductive contact piece in addition, has further improved the stability of third conducting strip.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. the movable contact and the fixed contact are arranged to separate the test circuit when the switch is opened, so that the electronic leakage circuit breaker and the electromagnetic leakage circuit breaker can be compatible, an internal circuit board and a tripping coil can be protected for electronics, and the function of unrestricted incoming line is realized;
2. through setting up many breakpoints to can further promote the protection effect to test circuit when test button is in lifting state or divide-shut brake operating unit is in the state of separating brake.
Drawings
Fig. 1 is a schematic view of the overall structure of the present utility model when installed in a housing.
Fig. 2 is a schematic overall structure of an embodiment of the present utility model.
Fig. 3 is a schematic view of fig. 2 showing a partial structure of the first conductive member and the second conductive member.
Fig. 4 is an exploded view of the partial structure of fig. 3 highlighting the first spring.
Reference numerals illustrate: 1. an electromagnetic trip; 2. a test button; 21. a limit groove; 3. an opening and closing operation assembly; 31. a moving contact; 32. removing the fastener; 4. a stationary contact; 5. a push plate; 51. a bending part; 52. a limiting hole; 53. a collision part; 6. a first spring; 61. a first conductive member; 7. a second conductive member; 8. a third conductive sheet; 81. conductive contact pieces.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-4.
The embodiment of the utility model discloses a test structure of a leakage protection module. Referring to fig. 1, the test structure of the leakage protection module includes an electromagnetic trip 1, a test button 2 for controlling the on-off of a test circuit, an on-off operation assembly 3 for controlling the on-off of the test circuit, and a fixed contact 4 for electrically connecting with one group of input terminals of a main circuit. The structure of the opening and closing operation assembly 3 is a conventional arrangement for a person skilled in the art, and will not be described herein.
As shown in fig. 2 and 3, the opening and closing operation assembly 3 is provided with a moving contact 31 for contacting with a fixed contact 4, the moving contact 31 is made of conductive material, and the fixed contact 4 is located on a path along which the moving contact 31 rotates along the closing direction. When the opening and closing operation assembly 3 is in a closing state, the movable contact 31 is in contact with the fixed contact 4. The electromagnetic release 1 is located on a path along which the opening and closing operation assembly 3 rotates along the closing direction, and the electromagnetic release 1 is used for releasing the opening and closing operation assembly 3 when the test circuit is conducted so as to realize opening and closing.
As shown in fig. 2 and 3, the opening and closing operation assembly 3 is further provided with a trip element 32 facing the trigger end of the electromagnetic trip 1, and the trigger end of the electromagnetic trip 1 is located on the rotation path of the trip element 32. A push plate 5 is further arranged between the trigger end of the electromagnetic release 1 and the release piece 32, and the push plate 5 faces the side wall of the electromagnetic release 1 to be in contact with the trigger end of the electromagnetic release 1. The push plate 5 is located on the path that the trip piece 32 rotates along the closing direction, when the test circuit is conducted, the trigger end of the electromagnetic trip 1 will apply the pushing force for the trip piece 32 to move away from the electromagnetic trip 1 by pushing the push plate 5, and finally the opening and closing operation assembly 3 will realize automatic trip and opening.
As shown in fig. 2 and 3, one end of the push plate 5 far away from the electromagnetic release 1 is bent and formed with a bending part 51, the bending part 51 is formed with a limiting hole 52 for limiting and fixing the push plate 5, the push plate 5 is hung on a limiting column on the inner side wall of the circuit breaker shell through the limiting hole 52, at this time, the push plate 5 can be limited on the inner side wall of the circuit breaker shell, and the push plate 5 can swing around the central shaft of the limiting hole 52. The push plate 5 is bent toward the side wall of the trip member 32 toward the direction approaching the trip member 32 and formed with an abutting portion 53, and the abutting portion 53 is used for directly contacting with the trip member 32.
As shown in fig. 3 and 4, the test circuit includes a first spring 6, a first conductive member 61, a second conductive member 7, and a third conductive sheet 8 for conducting electricity. The first spring 6 is sleeved on the test button 2 and is used for resetting the test button 2 when the test button 2 is pressed, one end of the first conductive piece 61 is fixedly connected with the end part of the first spring 6, and the other end of the first conductive piece 61 extends towards the direction close to the third conductive piece 8. When the test button 2 is pressed, the first conductive member 61 will keep moving synchronously with the expansion and contraction of the first spring 6. The side wall of the test button 2 facing the first conductive piece 61 is provided with a limit groove 21, and the first conductive piece 61 is fixedly embedded in the limit groove 21.
As shown in fig. 2 and 3, the second conductive member 7 is located between the moving contact 31 and the first conductive member 61, in this embodiment, the second conductive member 7 adopts a torsion spring, one end of the second conductive member 7 is fixedly connected with the moving contact 31, and the other end of the second conductive member 7 is disposed on the pressing path of the first conductive member 61. When the test button 2 is pressed, the first conductive member 61, the second conductive member 7, and the movable contact 31 are mutually connected. One end of the third conductive sheet 8 is electrically connected with one group of input ends of the main circuit, the other end of the third conductive sheet 8 is bent and formed with a conductive contact sheet 81, and the conductive contact sheet 81 faces the first conductive piece 61 and is located on the pressing path of the first conductive piece 61. When the test button 2 is pressed, the first conductive member 61 will be in contact with the conductive contact piece 81. The junction of the conductive contact piece 81 and the third conductive piece 8 forms an included angle, the third conductive piece 8 is attached to the outer side wall of the electromagnetic release 1, and the third conductive piece 8 is limited outside the electromagnetic release 1 through the conductive contact piece 81.
The implementation principle of the test structure of the leakage protection module in the embodiment of the utility model is as follows: when the electric leakage test is needed, the test circuit is switched on through the switching-on/off operation assembly 3, so that the moving contact 31 and the fixed contact 4 are kept in a mutually contacted state. At this time, the test circuit can be conducted by pressing the test button 2, and then the electromagnetic release 1 can release the opening and closing operation assembly 3 to realize opening and closing. Through setting up moving contact 31 and stationary contact 4 can be when breaking off the floodgate with test circuit branch, on the one hand can compatible electronic type electric leakage circuit breaker and electromagnetic type electric leakage circuit breaker, to the electronic type, can also protect inner line board and tripping coil, and realize the unrestricted function of inlet wire.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (9)
1. The utility model provides a test structure of earth leakage protection module, including electromagnetic release (1) and be used for controlling test button (2) of test circuit break-make, its characterized in that still includes:
the switching-on/off operation assembly (3), wherein a moving contact (31) for conducting electricity is arranged on the switching-on/off operation assembly (3);
the fixed contact (4) is used for being electrically connected with one group of input ends of the main circuit; the fixed contact (4) is positioned on a path along which the moving contact (31) rotates along the closing direction, and the fixed contact (4) is used for being in contact with the moving contact (31);
the electromagnetic release (1) is positioned on a path of the opening and closing operation assembly (3) rotating along the closing direction, and the electromagnetic release (1) is used for releasing the opening and closing operation assembly (3) when the test circuit is conducted.
2. The test structure of a leakage protection module according to claim 1, further comprising:
a release piece (32) arranged on the opening and closing operation assembly (3);
the push plate (5) is arranged between the tripping piece (32) and the triggering end of the electromagnetic tripping device (1), the push plate (5) is positioned on a path of the tripping device (32) rotating along the closing direction, and the triggering end of the electromagnetic tripping device (1) is used for pushing the push plate (5) to collide with the tripping piece (32) and separating the opening and closing operation assembly (3).
3. The test structure of a leakage protection module according to claim 2, wherein: the push plate (5) is provided with a bending part (51), and the bending part (51) is provided with a limiting hole (52) for limiting the push plate (5).
4. The test structure of a leakage protection module according to claim 2, wherein: the push plate (5) is bent towards the side wall of the release piece (32) towards the direction close to the release piece (32), and an abutting part (53) is formed.
5. The test structure of a leakage protection module according to claim 1, further comprising:
a first spring (6) arranged on the test button (2) and used for resetting the test button (2) when the test button (2) is pressed; the first spring (6) is connected with a first conductive piece (61), and the first conductive piece (61) keeps moving synchronously along with the expansion and contraction of the first spring (6).
6. The test structure of a leakage protection module according to claim 5, wherein:
the side wall of the test button (2) facing the first conductive piece (61) is provided with a limit groove (21), and the first conductive piece (61) is embedded in the limit groove (21).
7. A test structure of a leakage protection module according to claim 3, further comprising:
a second conductive member (7) located between the moving contact (31) and the first conductive member (61); one end of the second conductive piece (7) is connected with the moving contact (31), and the other end of the second conductive piece (7) is positioned on the pressing path of the first conductive piece (61).
8. The test structure of a leakage protection module according to claim 5, further comprising:
a third conductive sheet (8) having one end located on the pressing path of the first conductive member (61) and adapted to contact the first conductive member (61) in a pressed state; the other end of the third conducting strip (8) is electrically connected with one group of input ends of the main circuit.
9. The test structure of a leakage protection module according to claim 8, wherein: the third conducting strip (8) is bent towards the side wall of the first conducting piece (61) to form a conducting contact piece (81), the third conducting strip (8) is attached to the outer side wall of the electromagnetic release (1), and the third conducting strip (8) is limited outside the electromagnetic release (1) through the conducting contact piece (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320059771.2U CN219873376U (en) | 2023-01-09 | 2023-01-09 | Test structure of leakage protection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320059771.2U CN219873376U (en) | 2023-01-09 | 2023-01-09 | Test structure of leakage protection module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219873376U true CN219873376U (en) | 2023-10-20 |
Family
ID=88333598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320059771.2U Active CN219873376U (en) | 2023-01-09 | 2023-01-09 | Test structure of leakage protection module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219873376U (en) |
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2023
- 2023-01-09 CN CN202320059771.2U patent/CN219873376U/en active Active
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