Intelligent circuit breaker

Abstract

The utility model relates to an intelligent circuit breaker, which comprises a shell, a handle is arranged on the shell, a driving motor, a circuit board group and a gear group are arranged in the shell, the driving motor is electrically connected with the circuit board group, a motor worm is arranged at the output end of the driving motor, the input end of the gear group is meshed with the motor worm, and the output end of the gear group is meshed with the motor worm. The output end of the gear set is connected with the handle, adjacent gears of the gear set are meshed in a staggered mode, at least one first through hole is formed in the circuit board set, and one gear in the gear set is contained in each first through hole. According to the utility model, the transmission gear set and the circuit board are arranged in a penetrating manner, so that the usable area of the circuit board can be increased on the premise of not influencing the normal operation of the transmission gear set, the utilization rate of the internal space of the circuit breaker is effectively improved, and the overall volume specification of the circuit breaker is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage switches, in particular to an intelligent circuit breaker. Background Art

[0002] Miniature circuit breakers are widely used in low-voltage power distribution and control cabinets. However, with the increasing number of occasions requiring automatic control and remote control functions, due to defects in the structural design of the existing electric operating mechanisms of miniature circuit breakers, the cooperation between the electric operating mechanism and the miniature circuit breaker is unreasonable, resulting in problems such as circuit breaker failures or unstable performance.

[0003] On the electric operating mechanism, the transmission gear set is a core component part, mainly used for power transmission, amplifying the output torque of the motor and transmitting it to the handle. The existing layout schemes of the transmission gear sets on the electric operating mechanism all have the problem of high space occupancy rate, resulting in a significant reduction in the usable area of the circuit board, which greatly limits the functions of the product.

[0004] Therefore, there is a need for an intelligent circuit breaker that arranges the transmission gear set and the circuit board in an interspersed manner, increases the usable area of the circuit board, improves the utilization rate of the internal space, and reduces the overall volume specification. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the utility model provides an intelligent circuit breaker.

[0006] The technical solution of the utility model is as follows:

[0007] An intelligent circuit breaker includes a housing, a handle is provided on the housing, a driving motor, a circuit board group and a gear group are provided inside the housing, the driving motor is electrically connected to the circuit board group, a motor worm is provided at the output end of the driving motor, the input end of the gear group meshes with the motor worm, the output end of the gear group is connected to the handle, the adjacent gears of the gear group are meshed in a staggered manner, at least one first through hole is provided on the circuit board group, and one gear in the gear group is accommodated in each first through hole.

[0008] As a further improvement of the utility model, the circuit board group includes a power supply circuit board and a sampling circuit board, the power supply circuit board and the sampling circuit board are arranged in parallel, and the first through hole is provided on the sampling circuit board.

[0009] As a further improvement of the utility model, the gear group includes a first gear shaft, a second gear shaft and a handle gear shaft arranged on the shell, the first gear shaft is provided with a first gear, the second gear shaft is provided with a second gear, and the handle gear shaft is provided with a handle gear, the first gear is respectively meshed with the motor worm and the second gear, the second gear is meshed with the handle gear, and the handle gear is connected to the handle.

[0010] As a further improvement of the present invention, the second gear is arranged in the first through hole, the sampling circuit board is provided with a second through hole, the handle gear shaft passes through the second through hole, and the first gear and the handle gear are respectively arranged on both sides of the sampling circuit board.

[0011] As a further improvement of the utility model, the sampling circuit board is provided with a first giving way hole and a second giving way hole, the first giving way hole gives way to the first gear, and the second giving way hole gives way to the driving motor.

[0012] As a further improvement of the utility model, a clutch gear shaft is provided on the shell, a clutch through hole is provided on the sampling circuit board, the clutch gear shaft passes through the clutch through hole, a clutch gear is provided between the second gear and the handle gear, the clutch gear rotates around the clutch gear shaft, and the clutch gear has a first position in which it is meshed with the second gear and the handle gear, and a second position in which it is separated from the second gear.

[0013] As a further improvement of the present invention, the first gear, the second gear and the clutch gear are all double gears.

[0014] As a further improvement of the present utility model, the first gear includes a first tooth and a second tooth, the first tooth is meshed with the motor worm, the second tooth is meshed with the second gear, and the first tooth is a helical tooth.

[0015] As a further improvement of the present invention, a gear cover is provided between the power circuit board and the sampling circuit board, and the gear cover is snap-connected with the housing.

[0016] As a further improvement of the present invention, at least one third clearance hole is provided on the gear cover, and the third clearance hole makes way for electronic components on the sampling circuit board.

[0017] According to the utility model of the above scheme, the beneficial effects of the utility model are:

[0018] The utility model arranges the transmission gear set and the circuit board in an interspersed manner, which can increase the usable area of the circuit board without affecting the normal operation of the transmission gear set, effectively improve the utilization rate of the internal space of the circuit breaker, and reduce the overall volume specification of the circuit breaker. Description of the Drawings

[0019] Figure 1 is the structural explosion diagram of the utility model;

[0020] Figure 2 is the structural schematic diagram of the gear set and the sampling circuit board of the utility model at the first angle;

[0021] Figure 3 is the structural schematic diagram of the gear set and the sampling circuit board of the utility model at the second angle;

[0022] Figure 4 is the structural schematic diagram of the housing of the utility model;

[0023] Figure 5 is the structural schematic diagram of the sampling circuit board of the utility model;

[0024] Figure 6 is the structural schematic diagram of the first gear of the utility model;

[0025] Figure 7 is the structural schematic diagram of the gear cover of the utility model.

[0026] In the figures: 1. Housing; 2. Handle; 3. Driving motor; 31. Motor worm; 4. Power supply circuit board; 5. Sampling circuit board; 51. First through hole; 52. Second through hole; 53. First relief hole; 54. Second relief hole; 55. Clutch through hole; 56. Electronic components; 61. First gear shaft; 62. Second gear shaft; 63. Handle gear shaft; 64. First gear; 641. First tooth; 642. Second tooth; 65. Second gear; 66. Handle gear; 67. Clutch gear shaft; 68. Clutch gear; 7. Gear cover; 71. Third relief hole. Detailed Embodiment

[0027] Next, the technical solutions of the utility model will be clearly and completely described in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of them. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0030] See Figure 1 -5, the present utility model provides an intelligent circuit breaker, which includes a housing 1. A handle 2 is provided on the housing 1. A driving motor 3, a circuit board group and a gear group are provided inside the housing 1. The driving motor 3 is electrically connected to the circuit board group. A motor worm 31 is provided at the output end of the driving motor 3. The input end of the gear group meshes with the motor worm 31. The output end of the gear group is connected to the handle 2. The adjacent gears of the gear group are meshed in a staggered manner. At least one first through hole 51 is provided on the circuit board group. Each first through hole 51 accommodates one gear inside the gear group. The present utility model arranges the gear group and the circuit board group in an interpenetrating layout, so that the gear group and the circuit board group are combined, which can increase the usable area of the circuit board group without affecting the normal operation of the gear group, effectively improve the utilization rate of the internal space of the circuit breaker, and can effectively reduce the occupied space of the gear group and the circuit board group, and reduce the overall volume specification of the circuit breaker.

[0031] As an embodiment of the present utility model, the circuit board group includes a power supply circuit board 4 and a sampling circuit board 5. The power supply circuit board 4 and the sampling circuit board 5 are arranged in parallel. The first through hole 51 is provided on the sampling circuit board 5, that is, the sampling circuit board 5 and the gear group are arranged in an interpenetrating layout. The power supply circuit board 4 provides electrical energy for the sampling circuit board 5 and the driving motor 3. After the sampling circuit board 5 obtains the sampling signal, it controls the driving motor 3 to act. Of course, according to specific usage requirements, the power supply circuit board 4 can also be arranged in an interpenetrating layout with the gear group.

[0032] As an embodiment of the present utility model, the gear set includes a first gear shaft 61, a second gear shaft 62, and a handle gear shaft 63 provided on the housing 1. A first gear 64 is provided on the first gear shaft 61, a second gear 65 is provided on the second gear shaft 62, and a handle gear 66 is provided on the handle gear shaft 63. The first gear 64 meshes with the motor worm 31 and the second gear 65 respectively. The second gear 65 meshes with the handle gear 66, and the handle gear 66 is connected to the handle 2. During operation, the sampling circuit board 5 controls the driving motor 3 to act. The first gear 64, the second gear 65, and the handle gear 66 all rotate under the drive of the driving motor 3, and finally drive the handle 2 to act, realizing the disconnection of the circuit breaker.

[0033] See Figure 2 and Figure 3 As an embodiment of the present utility model, the second gear 65 is arranged in the first through hole 51. A second through hole 52 is provided on the sampling circuit board 5. The handle gear shaft 63 passes through the second through hole 52. The first gear 64 and the handle gear 66 are respectively arranged on both sides of the sampling circuit board 5, that is, both ends of the second gear 65 are respectively located on both sides of the sampling circuit board 5, and both ends of the second gear 65 mesh with the first gear 64 and the handle gear 66 respectively. Since the first gear 64 is relatively close to the driving motor 3, and the handle gear 66 is relatively close to the handle 2, therefore, arranging the second gear 65 in the middle position in the first through hole 51 can avoid unnecessary interference between the sampling circuit board 5 and the handle 2 or the driving motor 3, improving the overall working stability. Of course, according to specific usage requirements, the first gear 64 or the handle gear 66 can also be arranged in the first through hole 51, which can maximize the utilization of the internal space and increase the usage area of the sampling circuit board 5.

[0034] See Figure 5 As an embodiment of the present utility model, the sampling circuit board 5 is provided with a first relief hole 53 and a second relief hole 54. The first relief hole 53 provides clearance for the first gear 64, and the second relief hole 54 provides clearance for the driving motor 3, realizing that the sampling circuit board 5 can be adjusted in position according to specific usage requirements. When the position of the sampling circuit board 5 is close to the driving motor 3 and the first gear 64, it can avoid unnecessary interference between the sampling circuit board 5 and the first gear 64 and the driving motor 3.

[0035] As an embodiment of the utility model, a clutch gear shaft 67 is provided on the housing 1, a clutch through hole 55 is provided on the sampling circuit board 5, the clutch gear shaft 67 passes through the clutch through hole 55, and a clutch gear 68 is provided between the second gear 65 and the handle gear 66, that is, the clutch gear 68 and the handle gear 66 are located on the same side of the sampling circuit board 5, and the clutch gear 68 rotates around the clutch gear shaft 67. The clutch gear 68 has a first position in which it is meshed with the second gear 65 and the handle gear 66 and a second position separated from the second gear 65. By setting the clutch gear 68, the circuit breaker has the following two working modes:

[0036] Working mode 1: automatic working mode, the clutch gear 68 is switched to the first position, the sampling circuit board 5 controls the driving motor 3 to move, driving the first gear 64, the second gear 65, the clutch gear 68 and the handle gear 66 to rotate, and finally driving the handle 2 to move, realizing the circuit breaker disconnection;

[0037] Working mode 2: manual working mode, the clutch gear 68 is switched to the second position, and the staff manually pulls down the handle 2 to disconnect the circuit breaker;

[0038] By switching the clutch gear 68 between the first position and the second position, the engagement and disengagement between the clutch gear 68 and the second gear 65 are switched. When it is necessary to enter the manual working mode, the clutch gear 68 is separated from the second gear 65, so that the staff can eliminate the resistance from the drive motor 3 when turning the handle 2, avoiding unnecessary influence.

[0039] As an embodiment of the utility model, the first gear 64, the second gear 65, and the clutch gear 68 are all double gears, and the tooth pitch of the first gear 64, the second gear 65 and the clutch gear 68 can be adjusted according to specific usage requirements, thereby adjusting the rotation speed of the first gear 64, the second gear 65, the clutch gear 68 and the handle gear 66, and finally adjusting the action response time of the handle 2.

[0040] See also Figure 6 As an embodiment of the utility model, the first gear 64 includes a first tooth 641 and a second tooth 642. The first tooth 641 is meshed with the motor worm 31, and the second tooth 642 is meshed with the second gear 65. The first tooth 641 is a helical tooth. The first gear 64 and the motor worm 31 are matched with helical teeth, which can effectively improve the transmission stability between the two, and can also reduce the transmission noise between the two to a certain extent.

[0041] See also Figure 7, as an embodiment of the present utility model, a gear cover 7 is provided between the power supply circuit board 4 and the sampling circuit board 5. The gear cover 7 is snap-connected to the housing 1, that is, the power supply circuit board 4, the gear set, and the sampling circuit board 5 are isolated by the gear cover 7, which can not only protect the gear set, but also avoid unnecessary interference or even damage to the power supply circuit board 4 during the rotation of the gear set. At the same time, it is also beneficial to the installation of the power supply circuit board 4 and reduces the assembly difficulty.

[0042] As an embodiment of the present utility model, at least one third relief hole 71 is provided on the gear cover 7 to make way for the electronic components 56 on the sampling circuit board 5, which can not only reduce the occupied space of the sampling circuit board 5 and the gear cover 7, but also realize the communication connection between the sampling circuit board 5 and the power supply circuit board 4.

[0043] Installation steps: Install the drive motor 3, the first gear shaft 61, the second gear shaft 62, the clutch gear shaft 67, and the handle gear shaft 63 on the housing 1, then install the first gear 64 and the second gear 65 on the first gear shaft 61 and the second gear shaft 62 respectively, and mesh the first gear 64 and the second gear 65. Then install the sampling circuit board 5, align the first relief hole 53 with the first gear 64, the second relief hole 54 with the drive motor 3, and the first through hole 51 with the second gear 65. Then install the clutch gear 68 and the handle gear 66 on the clutch gear shaft 67 and the handle gear shaft 63 respectively, and mesh the clutch gear 68 with the second gear 65 and the handle gear 66 respectively. The handle gear 66 is fixedly connected to the handle 2. Then install the gear cover 7, and snap each positioning point on the gear cover 7 onto the housing 1. Then install the power supply circuit board 4 on the gear cover 7. Finally, cover the outer shell on the housing 1 to complete the assembly.

[0044] In summary, the present utility model provides an intelligent circuit breaker. By arranging the gear set and the circuit board set in an interpenetrating layout, the gear set and the circuit board set are combined, which can increase the usable area of the circuit board set without affecting the normal operation of the gear set, effectively improve the utilization rate of the internal space of the circuit breaker, and can effectively reduce the occupied space of the gear set and the circuit board set, thereby reducing the overall volume specification of the circuit breaker. The second gear 65 is arranged in the first through hole 51, which can avoid unnecessary interference between the sampling circuit board 5 and the handle 2 or the driving motor 3, and improve the overall working stability. By providing a clutch gear 68, the circuit breaker has two working modes: automatic and manual. When entering the manual working mode, the clutch gear 68 is separated from the second gear 65, so that when the staff turns the handle 2, the resistance from the driving motor 3 can be eliminated, avoiding unnecessary influence. The first gear 64 and the motor worm 31 are matched with each other by helical teeth, which can effectively improve the transmission smoothness between the two, and can also reduce the transmission noise between the two to a certain extent. The gear cover 7 can not only protect the gear set, but also prevent the gear set from causing unnecessary interference or damage to the power supply circuit board 4 during rotation, and can also facilitate the installation of the power supply circuit board 4 and reduce the assembly difficulty.

[0045] It should be emphasized that the above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. An intelligent circuit breaker, characterized in that: The invention comprises a housing (1), wherein a handle (2) is provided on the housing (1), wherein a driving motor (3), a circuit board group and a gear group are provided in the housing (1), wherein the driving motor (3) is electrically connected to the circuit board group, wherein a motor worm (31) is provided at the output end of the driving motor (3), wherein the input end of the gear group is meshed with the motor worm (31), wherein the output end of the gear group is connected to the handle (2), wherein adjacent gears of the gear group are staggered and meshed with each other, and wherein at least one first through hole (51) is provided on the circuit board group, wherein each of the first through holes (51) accommodates a gear in the gear group.

2. The intelligent circuit breaker according to claim 1, characterized in that: The circuit board group comprises a power circuit board (4) and a sampling circuit board (5); the power circuit board (4) and the sampling circuit board (5) are arranged in parallel; and the first through hole (51) is arranged on the sampling circuit board (5).

3. The intelligent circuit breaker according to claim 2, characterized in that: The gear set comprises a first gear shaft (61), a second gear shaft (62) and a handle gear shaft (63) which are arranged on the housing (1); the first gear shaft (61) is provided with a first gear (64); the second gear shaft (62) is provided with a second gear (65); the handle gear shaft (63) is provided with a handle gear (66); the first gear (64) is meshed with the motor worm (31) and the second gear (65) respectively; the second gear (65) is meshed with the handle gear (66); and the handle gear (66) is connected to the handle (2).

4. The intelligent circuit breaker according to claim 3, characterized in that: The second gear (65) is arranged in the first through hole (51), the sampling circuit board (5) is provided with a second through hole (52), the handle gear shaft (63) passes through the second through hole (52), and the first gear (64) and the handle gear (66) are respectively arranged on both sides of the sampling circuit board (5).

5. The intelligent circuit breaker according to claim 4, characterized in that: The sampling circuit board (5) is provided with a first giving way hole (53) and a second giving way hole (54), wherein the first giving way hole (53) gives way to the first gear (64), and the second giving way hole (54) gives way to the driving motor (3).

6. The intelligent circuit breaker according to claim 3, characterized in that: The housing (1) is provided with a clutch gear shaft (67), the sampling circuit board (5) is provided with a clutch through hole (55), the clutch gear shaft (67) passes through the clutch through hole (55), a clutch gear (68) is provided between the second gear (65) and the handle gear (66), the clutch gear (68) rotates around the clutch gear shaft (67), and the clutch gear (68) has a first position in which it is meshed with the second gear (65) and the handle gear (66), and a second position in which it is separated from the second gear (65).

7. The intelligent circuit breaker according to claim 6, characterized in that: The first gear (64), the second gear (65) and the clutch gear (68) are all double gears.

8. The intelligent circuit breaker according to claim 7, characterized in that: The first gear (64) comprises a first tooth (641) and a second tooth (642), the first tooth (641) meshes with the motor worm (31), the second tooth (642) meshes with the second gear (65), and the first tooth (641) is a helical tooth.

9. The intelligent circuit breaker according to claim 2, characterized in that: A gear cover (7) is provided between the power supply circuit board (4) and the sampling circuit board (5), and the gear cover (7) is snap-connected to the housing (1).

10. The intelligent circuit breaker according to claim 9, characterized in that: At least one third clearance hole (71) is provided on the gear cover (7), and the third clearance hole (71) makes way for the electronic components (56) on the sampling circuit board (5).

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