CN217280654U - Tripping mechanism of plug-in circuit breaker - Google Patents
Tripping mechanism of plug-in circuit breaker Download PDFInfo
- Publication number
- CN217280654U CN217280654U CN202123154447.9U CN202123154447U CN217280654U CN 217280654 U CN217280654 U CN 217280654U CN 202123154447 U CN202123154447 U CN 202123154447U CN 217280654 U CN217280654 U CN 217280654U
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- contact support
- lock catch
- hasp
- circuit breaker
- trip
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Abstract
The utility model provides a tripping device of plug-in circuit breaker, including the casing, be provided with trip gear on the casing, trip gear is including electromagnetic drive mechanism, contact support, rotate the jump of setting on the contact support and detain, rotate the hasp of setting on the contact support, hasp and jump detain spacing cooperation, electromagnetic drive mechanism including magnetism trip coil, with magnetism trip coil cooperation driven swing piece, the one end and the contact support of hasp rotate to be connected, the other end of hasp with swing piece push fit is provided with between hasp and the contact support and keeps compressing tightly the elasticity reset unit of cooperation on jumping the knot with the hasp, still is provided with the connecting hole that is used for wearing to establish the installation gangbar on the hasp, the casing correspondence is provided with and is used for the gangbar to wear to establish wobbling activity hole. The utility model discloses simple structure, stability and reliability when can improving the wiring.
Description
Technical Field
The utility model relates to a tripping device of bayonet circuit breaker.
Background
The utility model discloses a plug-in circuit breaker (CN 213212090U) with locking structure, which comprises a shell, wherein the shell is provided with a contact support, the contact support is provided with a movable contact rod, the contact support is also rotatably provided with a lock catch and a jump buckle, the lock catch is arranged on one side of the jump buckle, one end of the lock catch is provided with a lock catch groove, the lock catch groove and the jump buckle are clamped to form a limit for the rotation of the jump buckle, the other end of the lock catch is provided with a conflict bulge, the shell is also provided with a coil base and a magnetic trip coil, the magnetic trip coil is arranged on the coil base, a magnet disc used for enabling the lock catch groove and the jump buckle to be separated from each other by the conflict bulge when the magnetic trip coil attracts is arranged between the magnetic trip coil and the conflict bulge, and a reset tension spring used for enabling the magnet disc to reset and separate from the magnetic trip coil is arranged on the coil base, still be provided with the first reset torsion spring that is used for making after the hasp dropout reset between hasp and the contact support, still be provided with the reset spring who is used for reset contact to support in the casing, reset spring one end is connected on the casing and is close to the setting of transmission dish, and the other end is connected on the contact support and is close to the hasp setting, still rotate in the casing and be provided with the trace, the trace extends outward to the casing has the connecting rod, be provided with the connecting hole that is used for being connected with adjacent circuit breaker on the connecting rod, the casing corresponds the connecting rod position and is formed with the linkage spout, trace one end is contradicted and is set up on the contact support, and the other end is contradicted and is set up on magnet dish.
The circuit breaker's dropout structure that above-mentioned patent recorded spare part is many, and the structure is comparatively complicated, is unfavorable for production assembly, needs to rely on the trace to carry out the transmission between the circuit breaker of adjacent built-up connection, and the linkage process of dropout has the hysteresis quality.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a tripping device of bayonet circuit breaker, spare part is less, simple structure, and the dropout linkage is rapider.
In order to realize the above-mentioned purpose, the utility model provides a tripping device of plug-in circuit breaker, including the casing, be provided with trip gear on the casing, trip gear is including electromagnetic drive mechanism, contact support, rotate jump knot, the rotation setting on the contact support the hasp of setting on the contact support, the hasp is detained spacing cooperation with jumping, electromagnetic drive mechanism including magnetism trip coil, with magnetism trip coil cooperation driven swing piece, the one end and the contact support of hasp rotate to be connected, the other end of hasp with swing piece push fit is provided with between hasp and the contact support and keeps compressing tightly the elasticity reset unit of cooperation on jumping the knot with the hasp, still is provided with the connecting hole that is used for wearing to establish the installation gangbar on the hasp, the casing correspondence is provided with and is used for the gangbar to wear to establish wobbling activity hole.
Furthermore, the elastic reset unit is formed by bending and processing an elastic metal wire, one end of the elastic reset unit comprises a sleeve joint part formed by winding, a first positioning column matched with the sleeve joint part for sleeve joint positioning is arranged on the lock catch, a second positioning column is arranged on the contact support, and the other end of the elastic reset unit is a rod part matched with the second positioning column for butt positioning.
Furthermore, the electromagnetic driving mechanism comprises a support which is matched with the magnetic tripping coil for installation and positioning, the swinging block is connected to one end of the support in a swinging mode, and the swinging block comprises a first swinging end which is matched and attracted with the magnetic tripping coil and a second swinging end which is matched with the other end of the lock catch in a pushing mode.
Furthermore, the other end of the lock catch is provided with a cylinder part which extends and protrudes towards the direction of the movable hole, and the connecting hole is formed by an inner hole of the cylinder part.
The beneficial effects of the utility model are that: the utility model provides a hasp except can with electromagnetic drive device, jump the cooperation of detaining and realize the tripping operation, can also be used for the linkage of the deciliter tripping operation between the circuit breaker of adjacent built-up connection. Compared with the prior art, the trip mechanism does not need to be additionally provided with the linkage rod, so that the overall structure is simpler, the production and the processing are convenient, the force transmission is more direct, and the linkage speed during the trip can be effectively improved.
Drawings
Fig. 1 is an internal structure diagram of a circuit breaker according to an embodiment of the present invention;
fig. 2 is a partial enlarged view of the internal structure of the circuit breaker according to the embodiment of the present invention;
fig. 3 is a schematic view of the installation of a contact support according to an embodiment of the present invention;
fig. 4 is a structural diagram of an electromagnetic driving device according to an embodiment of the present invention.
Detailed Description
The utility model discloses plug-in circuit breaker's tripping device's embodiment is shown in figures 1-4: the electromagnetic trip device comprises a shell 1, a trip device is arranged on the shell 1, the trip device comprises an electromagnetic driving mechanism 2, a contact support 31, a jump buckle 32 rotatably arranged on the contact support 31 and a lock catch 33 rotatably arranged on the contact support 31, a movable contact 51 is connected on the contact support 31, a fixed contact 52 which is matched with the movable contact 51 for on-off is arranged on the shell 1, the lock catch 33 is in limit fit with the jump buckle 32, the electromagnetic driving mechanism comprises a magnetic trip coil 21 and a swing block 22 which is matched with the magnetic trip coil 21 for driving, one end of the lock catch 33 is rotatably connected with the contact support 31, the other end of the lock catch 33 is in push fit with the swing block 22, an elastic reset unit 34 which keeps the lock catch 33 in press fit on the jump buckle 32 is arranged between the lock catch 33 and the contact support 31, and a connecting hole 330 for installing a linkage rod 4 in a penetrating way is also arranged on the lock catch 33, the shell 1 is correspondingly provided with a movable hole 11 through which the linkage rod 4 penetrates and swings, the magnetic trip coil 21 can drive the swinging block 22 to swing, and then the swinging block 22 can drive the lock catch 33 to swing towards the direction away from the jump buckle 32, so that the jump buckle 32 and the lock catch 33 are not in limit fit, and the contact support 31 can be driven by the reset spring 6 to move towards the direction of separating the movable contact 51 from the fixed contact 52, so as to realize tripping. The lock catch 33 can drive the lock catches 33 of the circuit breakers connected in other combinations to synchronously swing through the linkage rod 4 movably penetrating through the movable hole 11 of the shell while swinging, and synchronous tripping of all the circuit breakers connected in combination is realized.
The elastic reset unit 34 is formed by bending an elastic metal wire, one end of the elastic reset unit 34 comprises a socket portion 341 formed by winding, a first positioning column 331 matched with the socket portion 341 and positioned in a socket manner is arranged on the lock catch 33, a second positioning column 311 is arranged on the contact support 31, the other end of the elastic reset unit 34 is a rod portion 342 matched with the second positioning column 311 in an abutting manner and positioned, grooves for embedding the elastic reset unit 34 are formed in the side portions of the first positioning column 331 and the second positioning column 311, the positioning effect can be improved, and the elastic reset unit 34 is prevented from being separated.
The elastic reset unit 34 with the structure has the advantages of simple structure, convenience in processing and forming, and difficulty in excessive deformation and damage after long-time use.
The electromagnetic driving mechanism 2 comprises a support 23 which is matched with the magnetic trip coil 21 for installation and positioning, the swinging block 22 is connected to one end of the support 23 in a swinging mode, the swinging block 22 comprises a first swinging end 221 which is matched and attracted by the magnetic trip coil 21 and a second swinging end 222 which is in pushing fit with the other end of the lock catch 33, and when large current passes through the magnetic trip coil 21, magnetism generated by the magnetic trip coil can drive the swinging block 22 to swing integrally through adsorbing the first swinging end 221.
The other end of the lock catch is provided with a cylinder part which extends and protrudes towards the direction of the movable hole, and the connecting hole is formed by an inner hole of the cylinder part.
The above embodiments are only one of the preferred embodiments of the present invention, and the general changes and substitutions performed by those skilled in the art within the technical scope of the present invention are all included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a tripping device of plug-in circuit breaker, is provided with trip gear including the casing on the casing, trip gear is including electromagnetic drive mechanism, contact support, the jump of rotation setting on the contact support is detained, is rotated the hasp of setting on the contact support, the hasp is detained spacing cooperation with jumping, electromagnetic drive mechanism including magnetism trip coil, with magnetism trip coil cooperation driven swing piece, its characterized in that: one end of the lock catch is rotatably connected with the contact support, the other end of the lock catch is in push fit with the swinging block, an elastic resetting unit which keeps the lock catch in a press fit on the jump buckle is arranged between the lock catch and the contact support, a connecting hole for penetrating and installing the linkage rod is further formed in the lock catch, and the shell is correspondingly provided with a movable hole for penetrating and swinging the linkage rod.
2. The trip mechanism of a plug-in circuit breaker of claim 1, wherein: the elastic reset unit is formed by bending and processing an elastic metal wire, one end of the elastic reset unit comprises a sleeve joint part formed by winding connection, a first positioning column is arranged on the lock catch and matched with the sleeve joint part to be sleeved and positioned, a second positioning column is arranged on the contact support, and the other end of the elastic reset unit is a rod part matched with the second positioning column to be abutted and positioned.
3. The trip mechanism of a plug-in circuit breaker of claim 1, wherein: the electromagnetic driving mechanism comprises a support which is matched with the magnetic tripping coil to be installed and positioned, the swinging block is connected to one end of the support in a swinging mode, and the swinging block comprises a first swinging end which is matched and attracted by the magnetic tripping coil and a second swinging end which is in push fit with the other end of the lock catch.
4. The trip mechanism of a plug-in circuit breaker of claim 1, wherein: the other end of the lock catch is provided with a cylinder part which extends and protrudes towards the direction of the movable hole, and the connecting hole is formed by an inner hole of the cylinder part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123154447.9U CN217280654U (en) | 2021-12-14 | 2021-12-14 | Tripping mechanism of plug-in circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123154447.9U CN217280654U (en) | 2021-12-14 | 2021-12-14 | Tripping mechanism of plug-in circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217280654U true CN217280654U (en) | 2022-08-23 |
Family
ID=82888825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123154447.9U Active CN217280654U (en) | 2021-12-14 | 2021-12-14 | Tripping mechanism of plug-in circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217280654U (en) |
-
2021
- 2021-12-14 CN CN202123154447.9U patent/CN217280654U/en active Active
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