CN219936965U - Leakage circuit breaker - Google Patents
Leakage circuit breaker Download PDFInfo
- Publication number
- CN219936965U CN219936965U CN202321507830.4U CN202321507830U CN219936965U CN 219936965 U CN219936965 U CN 219936965U CN 202321507830 U CN202321507830 U CN 202321507830U CN 219936965 U CN219936965 U CN 219936965U
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- CN
- China
- Prior art keywords
- protection unit
- utmost point
- pole
- torsion spring
- reset torsion
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- 230000005611 electricity Effects 0.000 claims abstract description 10
- 238000005452 bending Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a leakage circuit breaker with a simple structure and convenient installation of a test button. The technical scheme adopted comprises the following steps: the device comprises a shell and L-pole protection units and N-pole protection units, wherein the L-pole protection units and the N-pole protection units are respectively arranged on two sides of the shell, the L-pole input connection terminals and the L-pole output connection terminals are respectively arranged at two ends of the side of the L-pole protection units, the N-pole input connection terminals and the N-pole output connection terminals are respectively arranged at two ends of the side of the N-pole protection units, a test button is arranged at the upper end of the side of the shell, a reset torsion spring is arranged below the test button, a force arm of the reset torsion spring acting on the test button is bent to form an electricity taking contact, and after the reset torsion spring is pressed, electricity is taken through the contact of the electricity taking contact and a moving contact of the N-pole protection unit.
Description
Technical Field
The utility model relates to a protection switch, in particular to an electric leakage breaker.
Background
The leakage protector, called leakage switch for short, is mainly used for protecting the life of life with fatal danger when the equipment has leakage fault, has overload and short-circuit protection function, can be used for protecting the overload and short circuit of the circuit or motor, and can also be used for starting the circuit without frequent conversion under normal condition. The leakage breaker is suitable for overload and short-circuit protection of the lines from the rated current to 63A at the rated voltage of 230/400V at 50/60Hz, and can also be used as the infrequent operation conversion of the lines under normal conditions. A conventional earth leakage protector structure comprising: the device comprises a shell, an L pole protection unit and an N pole protection unit, wherein the L pole protection unit and the N pole protection unit are respectively arranged on two sides of the shell, an L pole input wiring terminal and an L pole output wiring terminal are respectively arranged at two ends of the shell corresponding to the L pole protection unit, an N pole input wiring terminal and an N pole output wiring terminal are respectively arranged at two ends of the shell corresponding to the N pole protection unit, and a test button is arranged at the upper end of the shell corresponding to the N pole protection unit. The traditional test button is provided with an independent reset spring and a conducting strip, and electricity is taken through the contact of the conducting strip and the moving contact, so that the defects of complex structure and inconvenient installation exist.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a leakage breaker with a simple structure and convenient installation of a test button.
In order to solve the problems, the technical scheme adopted by the utility model comprises the following steps: the casing and install respectively in L utmost point protection unit and the N utmost point protection unit of casing both sides, the casing corresponds L utmost point protection unit side's both ends are equipped with L utmost point input binding post and L utmost point output binding post respectively, the casing corresponds N utmost point protection unit side's both ends are equipped with N utmost point input binding post and N utmost point output binding post respectively, its characterized in that: the shell corresponds N pole protection unit side upper end and is equipped with test button, the test button below is equipped with reset torsion spring, reset torsion spring acts on the arm of force of test button is formed with through bending and gets the electricity contact, presses the reset torsion spring after, through get the electricity contact with the moving contact of N pole protection unit gets the electricity.
The leakage circuit breaker is characterized in that: the shell is provided with a mounting shaft for mounting the reset torsion spring, and a first clamping groove for connecting one arm of force of the reset torsion spring is formed in one side of the mounting shaft.
The leakage circuit breaker is characterized in that: the lower end of the test button is provided with a second clamping groove for connecting the other arm of force of the reset torsion spring.
The leakage circuit breaker is characterized in that: the L pole protection unit and the N pole protection unit are respectively provided with an independent operating handle.
The leakage circuit breaker is characterized in that: and a linkage hole is arranged between the operating handles.
The leakage circuit breaker is characterized in that: the power taking contact is U-shaped.
The leakage circuit breaker has the advantages that: the reset torsion spring can be used for resetting the test button and can be used for taking electricity, one part realizes two functions, the structure is simpler, and the installation is more convenient.
Drawings
The utility model is further described below with reference to the drawings.
FIG. 1 is a schematic view of the L pole protection unit of the leakage breaker of the present utility model;
FIG. 2 is a schematic diagram of the structure of the N pole protection unit of the leakage breaker of the present utility model;
FIG. 3 is a schematic view of the structure of the housing of the present utility model;
FIG. 4 is a schematic view of the structure of the test button of the present utility model;
FIG. 5 is a schematic view of the return torsion spring of the present utility model.
Detailed Description
Referring to fig. 1 to 5, the leakage breaker of the present utility model comprises a casing 1, and an L-pole protection unit 2 and an N-pole protection unit 3 respectively mounted on two sides of the casing 1, wherein the L-pole protection unit 2 and the N-pole protection unit 3 respectively perform leakage protection on a live wire and a zero wire of a circuit. The L pole protection unit 2 comprises an electromagnetic system, a locking mechanism and an arc extinguishing chamber; the N pole protection unit 3 comprises an electromagnetic system, a locking mechanism and a current transformer. The two ends of the shell 1 corresponding to the side of the L-pole protection unit 2 are respectively provided with an L-pole input connecting terminal 4 and an L-pole output connecting terminal 5, and the two ends of the shell 1 corresponding to the side of the N-pole protection unit 3 are respectively provided with an N-pole input connecting terminal 6 and an N-pole output connecting terminal 7. The upper end of the shell 1 corresponding to the N pole protection unit 3 side is provided with a test button 8, and the test button 8 is arranged in a mounting groove at the upper end of the shell 1 in a vertically sliding way. The test button 8 below is equipped with reset torsion spring 9, reset torsion spring 9 acts on the arm of force of test button 8 is formed with through bending and gets electric contact 10, presses reset torsion spring 9 back, through get electric contact 10 with the moving contact 11 of N utmost point protection unit 3 gets the electricity. The power take-off contact 10 is desirably "U" shaped to better contact the moving contact 11.
Preferably, the casing 1 is provided with a mounting shaft 12 for mounting the reset torsion spring 9, a first clamping groove 13 for connecting one arm of force of the reset torsion spring 9 is arranged at one side corresponding to the mounting shaft 12, and a second clamping groove 14 for connecting the other arm of force of the reset torsion spring 9 is arranged at the lower end of the test button 8. Through the structure, the reset torsion spring 9 is convenient to install and stable.
Preferably, the L-pole protection unit 2 and the N-pole protection unit 3 are provided with independent operation handles 15. Compared with the traditional method that a single operation handle is matched with a linkage rod to operate the L-pole protection unit and the N-pole protection unit, the L-pole protection unit is better in strength, not easy to deform and more suitable for the easy-to-assemble type residual current circuit breaker with high current (63A). A linkage hole 16 is provided between the operation handles 15, and a linkage rod can be installed in the linkage hole 20 to perform linkage operation.
Although the present utility model has been described with respect to preferred embodiments, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the scope of the utility model, and the utility model is not limited to the specific embodiments described above, but is intended to cover all modifications, equivalents and alternatives falling within the scope of the utility model.
Claims (6)
1. The utility model provides an electric leakage circuit breaker, includes casing (1) and install respectively in L utmost point protection unit (2) and N utmost point protection unit (3) of casing (1) both sides, casing (1) correspond L utmost point protection unit (2) side's both ends are equipped with L utmost point input binding post (4) and L utmost point output binding post (5) respectively, casing (1) correspond N utmost point protection unit (3) side's both ends are equipped with N utmost point input binding post (6) and N utmost point output binding post (7) respectively, its characterized in that: the utility model discloses a power supply device, including casing (1), N utmost point protection unit (3) side upper end, test button (8) are equipped with, test button (8) below is equipped with reset torsion spring (9), reset torsion spring (9) act on the arm of force of test button (8) is formed with through bending and gets electric contact (10), presses reset torsion spring (9) back, through get electric contact (10) with moving contact (11) contact of N utmost point protection unit (3) get the electricity.
2. The earth leakage breaker according to claim 1, characterized in that: the shell (1) is provided with a mounting shaft (12) for mounting the reset torsion spring (9), and a first clamping groove (13) for connecting one arm of force of the reset torsion spring (9) is arranged on one side of the mounting shaft (12).
3. The earth leakage breaker according to claim 2, characterized in that: the lower end of the test button (8) is provided with a second clamping groove (14) for connecting the other arm of force of the reset torsion spring (9).
4. The earth leakage breaker according to claim 1, characterized in that: the L pole protection unit (2) and the N pole protection unit (3) are respectively provided with an independent operating handle (15).
5. The earth leakage breaker according to claim 4, characterized in that: a linkage hole (16) is arranged between the operating handles (15).
6. The earth leakage breaker according to claim 1, characterized in that: the power taking contact (10) is U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321507830.4U CN219936965U (en) | 2023-06-14 | 2023-06-14 | Leakage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321507830.4U CN219936965U (en) | 2023-06-14 | 2023-06-14 | Leakage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219936965U true CN219936965U (en) | 2023-10-31 |
Family
ID=88485422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321507830.4U Active CN219936965U (en) | 2023-06-14 | 2023-06-14 | Leakage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219936965U (en) |
-
2023
- 2023-06-14 CN CN202321507830.4U patent/CN219936965U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |