Novel mechanism high-breaking short-circuiting device
By designing a combined structure such as handle, U-shaped rod, linkage, and lock in the circuit breaker, the problem of sliding buckle caused by wear of the circuit breaker is solved, extending the use time and improving safety.
Patent Information
- Application Number
- CN202520925514.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-12
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2035-05-12
AI Technical Summary
After a long time of use, existing circuit breakers are prone to slip due to wear of components in the operating mechanism, which affects the normal use of the circuit breakers and poses safety hazards.
A new type of mechanism high-dividing short circuit is designed, which adopts a combined structure of handle, U-shaped rod, linkage, lock, linkage spring and tripping mechanism. The lower hook groove of the linkage fits with the plane of the upper hook groove of the lock, reduces relative movement and increases wear time, and avoids sliding.
It extends the use time of the circuit breaker, reduces wear, improves the reliability and safety of the circuit breaker, and reduces the incidence of slips.
Smart Images
Figure CN223006722U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a circuit breaker, in particular to a novel mechanism high breaking capacity circuit breaker. Background Art
[0002] A circuit breaker is an electrical device used to protect circuits from damage caused by overload or short circuit. When the current in the circuit exceeds a predetermined safe value, the circuit breaker automatically cuts off the current to prevent potential fires or other electrical faults. Circuit breakers are widely used in homes, industries, and power transmission systems.
[0003] After long-term use of current circuit breakers, the components inside the operating mechanism are prone to slipping due to wear, which affects the normal use of the circuit breaker and poses a safety hazard. Summary of the Utility Model
[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a novel mechanism high breaking capacity circuit breaker.
[0005] To achieve the above purpose, the utility model provides the following technical solutions: It includes a housing and a handle, a U-shaped rod, a linkage, a lock, a linkage spring, and a tripping mechanism arranged inside the housing. The handle is rotatably arranged inside the housing, the linkage is rotatably arranged inside the housing, one end of the U-shaped rod is rotatably arranged on the handle, and the other end is rotatably arranged on the linkage. The linkage is provided with a lower hook groove, the lock is rotatably arranged inside the housing and is provided with an upper hook groove, the linkage spring is arranged on the lock, so that the upper hook groove and the lower hook groove are mutually attached and form a hooked state for the linkage and the lock to be linked. The tripping mechanism has a tripping state of driving the lock to rotate away from the linkage and unlocking the hooked state between the upper hook groove and the lower hook groove. The tripping mechanism is a conventional technology, so it will not be elaborated.
[0006] By adopting the above technical solutions, when the handle needs to be closed, the handle rotates to the left, and then drives the linkage and the lock to rotate through the U-shaped rod, so that the handle moves to the closing position. During this process, the lower hook groove of the linkage is always attached to the upper hook groove of the lock, and because it is a plane attachment, the relative movement generated is small, the wear is also small, the service time is longer, and it is less likely to slip. When tripping, the tripping mechanism contacts the lock, so that the lock is separated from the linkage, thus achieving the purpose of tripping.
[0007] The utility model is further set as: The linkage includes a linkage block and a linkage plate. A rotating rod is arranged inside the housing. The lock and the linkage plate rotate along the rotating rod. The linkage block is arranged on the linkage plate. The linkage block is provided with a linkage groove, the lower hook groove is arranged on the linkage block, a handle groove is arranged on the handle, and both sides of the U-shaped rod are respectively arranged in the linkage groove and the handle groove.
[0008] By adopting the above technical solution, after the linkage block is driven by the U-shaped rod to rotate, the lock that abuts against the lower hook groove of the linkage block rotates synchronously, and at the same time, the linkage plate also rotates.
[0009] The present utility model is further configured as: the linkage block and the lock are made of plastic.
[0010] By adopting the above technical solution, the mutually fitting linkage block and lock are both made of plastic, resulting in less wear and being more durable.
[0011] The present utility model is further configured as: it further includes a static contact and a moving contact. The static contact is arranged on the housing, the moving contact is arranged on the linkage plate and rotates with the linkage plate. The handle has a closing position and a tripping position. The closing position is where the static contact and the moving contact are in contact, and the tripping position is where the static contact and the moving contact are separated.
[0012] The present utility model is further configured as: the handle has an operating part located outside the housing and the operating part is at the center of the top of the housing.
[0013] By adopting the above technical solution, the operating part being in the central position enables the user to more conveniently operate the handle when the overall circuit breaker is installed in the corresponding position.
[0014] The present utility model is further configured as: it further includes a magnetic yoke. The magnetic yoke is in the shape of a "mouth". There are limiting protrusions inside the housing and the limiting protrusions are arranged around the outer periphery of the magnetic yoke. There are also limiting columns in the housing. The static contact is arranged on the limiting columns, and the limiting protrusions and the limiting columns constitute the abutment between the magnetic yoke and the static contact.
[0015] By adopting the above technical solution, the magnetic yoke and the static contact do not need to be fixed by additional spot welding, but are limited and fixed by the limiting protrusions and limiting columns of the outer shell, thereby reducing the manufacturing difficulty.
[0016] The present utility model is further configured as: the lock has a cooperating part opposite to the tripping mechanism.
[0017] The present utility model is further configured as: the lock is provided with a shielding plate and is located on one side of the upper hook groove. By adopting the above technical solution, it prevents the buckle from slipping. Description of the Drawings
[0018] Figure 1 It is a schematic structural diagram of the present utility model in Embodiment 1 with part of the housing omitted;
[0019] Figure 2 It is a schematic structural diagram of the linkage block of the present utility model in Embodiment 1;
[0020] Figure 3 It is a schematic structural diagram of the lock of the present utility model in Embodiment 1;
[0021] Figure 4 This is a schematic structural diagram of the latch in Embodiment 2 of the present utility model.
[0022] In the figure: 1, housing; 10, rotating rod; 2, handle; 21, handle groove; 22, operating part; 3, U-shaped rod; 4, linkage member; 41, linkage block; 42, linkage plate; 43, lower hook groove; 44, linkage groove; 5, latch; 51, upper hook groove; 52, mating part; 53, shielding plate; 6, linkage spring; 7, release mechanism; 8, static contact; 81, moving contact; 9, magnet; 91, limiting protrusion; 92, limiting post. Detailed implementation manners
[0023] Next, the technical solutions of the present utility model will be described clearly and completely with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0025] Such as Figures 1-4As shown in the figure, the utility model discloses a new type of high-breaking short-circuit breaker mechanism, which includes a housing 1 and a handle 2, a U-shaped rod 3, a linkage member 4, a latch 5, a linkage spring 6, and a tripping mechanism 7 arranged inside the housing 1. The handle 2 is rotatably arranged inside the housing 1, and the linkage member 4 is rotatably arranged inside the housing 1. One end of the U-shaped rod 3 is rotatably arranged on the handle 2, and the other end is rotatably arranged on the linkage member 4. The linkage member 4 is provided with a lower hook groove 43, and the latch 5 is rotatably arranged inside the housing 1 and is provided with an upper hook groove 51. The linkage spring 6 is arranged on the latch 5, so that the upper hook groove 51 and the lower hook groove 43 are mutually attached and form a hooked state for the linkage between the linkage member 4 and the latch 5. The tripping mechanism 7 has a tripping state of driving the latch 5 to rotate away from the linkage member 4 and releasing the hooked state between the upper hook groove 51 and the lower hook groove 43. The tripping mechanism 7 is a conventional technology, so it will not be elaborated here. When the handle 2 needs to be closed, the handle 2 rotates to the left, and then drives the linkage member 4 and the latch 5 to rotate through the U-shaped rod 3, so that the handle 2 moves to the closing position. During this process, the lower hook groove 43 of the linkage member 4 is always attached to the upper hook groove 51 of the latch 5, and because it is a planar attachment, the relative movement generated is small, the wear is small, the service time is longer, and it is less likely to slip. When tripping, the tripping mechanism 7 contacts the latch 5, so that the latch 5 is separated from the linkage member 4, thus achieving the purpose of tripping.
[0026] The linkage member 4 includes a linkage block 41 and a linkage plate 42. A rotating rod 10 is arranged inside the housing 1. The latch 5 and the linkage plate 42 rotate along the rotating rod 10. The linkage block 41 is arranged on the linkage plate 42. The linkage block 41 is provided with a linkage groove 44, and the lower hook groove 43 is arranged on the linkage block 41. The handle 2 is provided with a handle groove 21. Both sides of the U-shaped rod 3 are respectively arranged in the linkage groove 44 and the handle groove 21. After the linkage block 41 is driven to rotate by the U-shaped rod 3, the latch 5 in contact with the lower hook groove 43 of the linkage block 41 rotates synchronously, and at the same time the linkage plate 42 also rotates.
[0027] The linkage block 41 and the latch 5 are made of plastic material. The mutually attached linkage block 41 and latch 5 are both plastic, with small wear and longer durability.
[0028] It also includes a static contact 8 and a moving contact 81. The static contact 8 is arranged on the housing 1, and the moving contact 81 is arranged on the linkage plate 42 and rotates with the linkage plate 42. The handle 2 has a closing position and a tripping position. The closing position is when the static contact 8 and the moving contact 81 are in contact, and the tripping position is when the static contact 8 and the moving contact 81 are separated.
[0029] The handle 2 has an operating part 22 located outside the housing 1 and the operating part 22 is at the center of the top of the housing 1. The operating part 22 being at the central position enables the user to more conveniently control the handle 2 when the overall circuit breaker is installed in the corresponding position.
[0030] It further includes a magnetic block 9. The magnetic block 9 is in a "square" shape. A limiting protrusion 91 is provided inside the housing 1 and the limiting protrusion 91 is arranged around the outer periphery of the magnetic block 9. A limiting post 92 is also provided inside the housing 1. The static contact 8 is arranged on the limiting post 92. The limiting protrusion 91 and the limiting post 92 constitute the abutment between the magnetic block 9 and the static contact 8. The magnetic block 9 and the static contact 8 do not need to be fixed by additional spot welding, but are limited and fixed by the limiting protrusion 91 and the limiting post 92 of the outer shell, thereby reducing the manufacturing difficulty.
[0031] The latch 5 has a mating portion 52 opposite to the release mechanism 7.
[0032] Working process of Embodiment 1: When the handle 2 needs to be closed, the handle 2 rotates to the left, and then drives the linkage 4 and the latch 5 to rotate through the U-shaped rod 3, so that the handle 2 moves to the closing position. During this process, the lower hook groove 43 of the linkage 4 is always in contact with the upper hook groove 51 of the latch 5. And because it is a planar contact, the relative movement generated is small, the wear is small, the service life is longer, and it is less likely to slip. When tripping, the release mechanism 7 contacts the latch 5, so that the latch 5 is separated from the linkage 4, thereby achieving the purpose of tripping.
[0033] The difference between Embodiment 2 and Embodiment 1 is that the latch 5 has a shielding plate 53.
Claims
1. A new type of high breaking short circuit breaker, characterized by: It includes a housing (1), a handle (2), a U-shaped rod (3), a linkage member (4), a lock (5), a linkage spring (6), and a tripping mechanism (7) disposed within the housing (1). The handle (2) is rotatably disposed within the housing (1), the linkage member (4) is rotatably disposed within the housing (1), one end of the U-shaped rod (3) is rotatably disposed on the handle (2), and the other end is rotatably disposed on the linkage member (4). The linkage member (4) is provided with a lower hook groove (43), the lock (5) is rotatably disposed within the housing (1) and is provided with an upper hook groove (51). The linkage spring (6) is disposed on the lock (5) such that the upper hook groove (51) and the lower hook groove (43) are in a state of being attached to each other to form a linkage state between the linkage member (4) and the lock (5). The tripping mechanism (7) has a tripping state of driving the lock (5) to rotate away from the linkage member (4) and unlocking the hooked state between the upper hook groove (51) and the lower hook groove (43).
2. A novel high-breakage short-circuit device according to claim 1, characterized in that: The linkage member (4) includes a linkage block (41) and a linkage plate (42). A rotating rod (10) is disposed within the housing (1). The lock (5) and the linkage plate (42) rotate along the rotating rod (10). The linkage block (41) is disposed on the linkage plate (42). The linkage block (41) is provided with a linkage groove (44). The lower hook groove (43) is disposed on the linkage block (41). A handle groove (21) is disposed on the handle (2). Two sides of the U-shaped rod (3) are respectively disposed in the linkage groove (44) and the handle groove (21).
3. A novel high-breakage short-circuit device according to claim 2, characterized in that: The linkage block (41) and the lock (5) are made of plastic material.
4. A novel high-breakage short-circuit device according to claim 2, characterized in that: It further includes a static contact (8) and a moving contact (81). The static contact (8) is disposed on the housing (1). The moving contact (81) is disposed on the linkage plate (42) and rotates with the linkage plate (42). The handle (2) has a closing position and a tripping position. The closing position is when the static contact (8) is in contact with the moving contact (81), and the tripping position is when the static contact (8) is separated from the moving contact (81).
5. A novel high-breakage short-circuit device according to claim 1, characterized in that: The handle (2) has an operating portion (22) located outside the housing (1) and the operating portion (22) is at the center of the top of the housing (1).
6. A novel high-breakage short-circuit device according to claim 4, characterized in that: It further includes a magnetic block (9). The magnetic block (9) is in a "mouth" shape. A limiting protrusion (91) is disposed inside the housing (1) and the limiting protrusion (91) surrounds the outer periphery of the magnetic block (9). A limiting post (92) is also disposed within the housing (1). The static contact (8) is disposed on the limiting post (92). The limiting protrusion (91) and the limiting post (92) constitute the abutment between the magnetic block (9) and the static contact (8).
7. A novel high-breakage short-circuit device according to claim 2, characterized in that: The lock (5) has a mating portion (52) opposite to the tripping mechanism (7).
8. A novel high-breakage short-circuit device according to claim 1, characterized in that: The lock (5) is provided with a shielding plate (53) and is located on one side of the upper hook groove (51).