Driving device for low-voltage drawer-type installed molded case circuit breaker

Abstract

The invention discloses a low-voltage drawer type installation molded case circuit breaker driving device, which relates to the technical field of switch cabinets and comprises a device main body, a gear set and a driving motor capable of rotating forwards and backwards. The gear set comprises a motor gear, a clutch gear and a driving gear; the driving motor is fixed to the device body, and an output shaft fixes a motor gear. The clutch gear is fixed to the device body, and an input gear of the clutch gear is meshed with the motor gear. The driving gear is rotationally mounted on the device main body and is meshed with an output gear of the clutch gear; the driving gear is provided with a clamping groove which extends to the central position of the driving gear and is used for clamping an operating rod of the circuit breaker. The electric driving control of the operating rod can be realized, the structure is simple and compact, the installation and transformation are fast, the cost is effectively reduced, and safety and reliability are realized.

Description

Technical Field

[0001] The present application relates to the technical field of switch cabinets, and in particular to a low-voltage drawer-type mounted molded case circuit breaker drive device. Background Art

[0002] Low-voltage switchgear is a switchgear used to transmit and distribute electric energy. It plays a role in controlling, closing and protecting in the circuit and directly supplies power to users. In order to reduce investment costs and reduce the floor space occupied by switchgear, feeder circuits with a rated current of ≤800A in low-voltage switchgear usually use drawer-type low-voltage molded case circuit breakers, and mainly use manual operating mechanisms.

[0003] With the continuous advancement of technology and the increasingly urgent need for power grid upgrades, existing withdrawable devices are facing some challenges. Therefore, upgrading the original molded case circuit breakers to electric molded case circuit breakers has become a key task.

[0004] However, the withdrawable device has a compact structure and complex interlocking. There is currently no electric operating mechanism suitable for drawer-type molded case circuit breakers, so it is impossible to automate the original manual drawer-type molded case circuit breaker. If it is replaced with an integrated intelligent molded case circuit breaker, on-site transformation is extremely difficult and results in a waste of investment. Summary of the invention

[0005] In view of this, the purpose of the present application is to provide a low-voltage drawer-type molded case circuit breaker drive device to solve the technical problem that the existing manual drawer-type molded case circuit breakers are difficult to upgrade and transform.

[0006] In order to achieve the above technical purpose, the present application provides a low-voltage drawer-type installed molded case circuit breaker drive device, including a device body, a gear set and a drive motor capable of forward and reverse rotation;

[0007] The gear set includes a motor gear, a clutch gear and a driving gear;

[0008] The driving motor is fixed to the device body, and the output shaft is fixed to the motor gear;

[0009] The clutch gear is fixed to the device body, and its input gear is meshed with the motor gear;

[0010] The driving gear is rotatably mounted on the device body and meshes with the output gear of the clutch gear;

[0011] The driving gear is provided with a slot extending to the center of the driving gear and for the circuit breaker operating rod to be inserted into.

[0012] Furthermore, the gear set further includes a first transmission gear and a second transmission gear;

[0013] The first transmission gear and the second transmission gear are coaxially fixedly connected and rotatably mounted on the device body;

[0014] The diameter of the first transmission gear is larger than that of the second transmission gear and the motor gear;

[0015] The first transmission gear is meshed with the motor gear;

[0016] The second transmission gear is meshed with an input gear of the clutch gear.

[0017] Further, an adjustable mounting bracket is included;

[0018] The adjustable mounting bracket is connected to the device body and is used to adjust the mounting position of the device body.

[0019] Further, the adjustable mounting bracket includes a first bracket;

[0020] The first bracket is provided with a first support plate and a second support plate vertically connected to the first support plate;

[0021] The first support plate is provided with a first installation groove which penetrates the first support plate and is arranged along a vertical straight line direction;

[0022] The second support plate is provided with a second installation groove penetrating through the second support plate and arranged along the first horizontal straight line direction;

[0023] The device body is provided with a first fastener that passes through the second mounting slot and fixes the second support plate to the device body.

[0024] Furthermore, the first support plate and the second support plate are integrally formed.

[0025] Further, the adjustable mounting bracket also includes a second bracket;

[0026] The second bracket is provided with a third support plate and a fourth support plate vertically connected to the third support plate;

[0027] The third support plate is provided with a third mounting groove penetrating the third support plate and arranged along a second horizontal straight line direction perpendicular to the first horizontal straight line direction;

[0028] The fourth support plate is provided with a fourth mounting groove arranged along the first horizontal straight line direction;

[0029] The device body is provided with a second fastener that passes through the fourth mounting slot and fixes the fourth support plate to the device body.

[0030] Furthermore, the third support plate and the fourth support plate are integrally formed.

[0031] Further, the first fastener and the second fastener both include bolts and nuts;

[0032] The bolt is passed through the device body;

[0033] The nut is sleeved on the bolt and clamps the second support plate or the fourth support plate between the nut and the head of the bolt.

[0034] Further, the device body includes a middle plate, a first side plate and a second side plate;

[0035] The driving motor is fixed on one side of the middle plate, and the output shaft passes through the other side of the middle plate;

[0036] The motor gear is fixed on the shaft section of the output shaft extending to the other side of the middle plate;

[0037] The first side plate is fixed parallel to one side of the middle plate through a first connecting member;

[0038] The driving gear is rotatably mounted between the first side plate and the middle plate;

[0039] The second side plate is fixed in parallel to the other side of the middle plate through a second connecting member;

[0040] The first transmission gear and the second transmission gear are rotatably mounted between the second side plate and the middle plate;

[0041] The clutch gear is disposed on the middle plate, and its input gear is located on the other side of the middle plate, and its output gear is located on one side of the middle plate.

[0042] Further, the middle plate includes a first plate portion, a connecting plate portion and a second plate portion;

[0043] The first plate portion and the second plate portion are arranged in parallel and staggered manner;

[0044] The connecting plate portion is vertically connected between the first plate portion and one side edge of the second plate portion, so that the middle plate forms a Z shape;

[0045] The first side plate is arranged on one side of the first plate portion;

[0046] The second side plate is arranged on one side of the second plate portion.

[0047] It can be seen from the above technical solutions that the low-voltage drawer-type mounted molded case circuit breaker drive device designed in this application has the following beneficial effects:

[0048] 1. The driving motor drives the motor gear to rotate, and the motor gear is engaged with the input gear of the clutch gear to drive the input gear to rotate, thereby driving the output gear of the clutch gear, and then the output gear is engaged with the driving gear to drive the driving gear to rotate, thereby driving the operating lever in the slot to rotate, thereby realizing the electric drive control of the operating lever, and then realizing the electric drive operation of the molded case circuit breaker.

[0049] 2. The number of required parts is small and the size is small, which is suitable for compact drawer-type application space. Moreover, by changing the installation position, it can adapt to different brands of molded case circuit breakers, realizing the universality and interchangeability between molded case circuit breakers and electric operating mechanisms.

[0050] 3. The structure is simple and the renovation and construction is convenient. The renovation and construction time is shortened from the original 3 hours to 10 minutes, which greatly improves labor efficiency and can reduce investment costs by about 20%, further accelerating the pace of digital distribution network construction.

[0051] 4. Equipped with a clutch gear, when the output torque of the drive motor is too large, it can be partially or completely separated to avoid damage to the entire transmission system and the operating lever, thereby improving product reliability and power supply reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0053] Figure 1 A first exploded schematic diagram of a low-voltage drawer-type mounted molded case circuit breaker drive device with an adjustable mounting bracket provided in the present application;

[0054] Figure 2 A front view of a low-voltage drawer-type mounted molded case circuit breaker drive device provided in the present application;

[0055] Figure 3 A second exploded schematic diagram of a low-voltage drawer-type mounted molded case circuit breaker drive device provided in the present application with an adjustable mounting bracket;

[0056] Figure 4 This is a structural schematic diagram of a first bracket of a low-voltage drawer-type mounted molded case circuit breaker driving device provided in this application;

[0057] Figure 5 A schematic diagram of the structure of a second bracket of a low-voltage drawer-type mounted molded case circuit breaker driving device provided in the present application;

[0058] Figure 6 A three-dimensional diagram of a low-voltage drawer-type mounted molded case circuit breaker driving device provided in the present application;

[0059] Figure 7 A three-dimensional diagram of a driving gear of a low-voltage drawer-mounted molded case circuit breaker driving device provided in the present application when the driving gear is designed as a half-tooth;

[0060] In the figure: 1. device body; 11. middle plate; 111. first plate portion; 112. connecting plate portion; 113. second plate portion; 12. second side plate; 13. first side plate; 2. driving motor; 3. motor gear; 4. clutch gear; 41. input gear; 42. output gear; 5. driving gear; 51. slot; 61. first transmission gear; 62. second transmission gear; 7. adjustable mounting bracket; 71. first bracket; 711. first support plate; 712. second support plate; 713. first mounting slot; 714. second mounting slot; 72. second bracket; 81. first fastener; 82. second fastener. DETAILED DESCRIPTION

[0061] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection of the embodiments of the present application.

[0062] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0063] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0064] The embodiment of the present application discloses a low-voltage drawer-type mounted molded case circuit breaker driving device.

[0065] See also Figures 1 to 3 ,as well as Figure 7 , an embodiment of a low-voltage drawer-type mounted molded case circuit breaker driving device provided in an embodiment of the present application includes:

[0066] The device body 1, a gear set and a driving motor 2 capable of forward and reverse rotation.

[0067] The gear set includes a motor gear 3 , a clutch gear 4 and a driving gear 5 .

[0068] The driving motor 2 is fixed to the device body 1 , and the output shaft is fixed to the motor gear 3 to drive the motor gear 3 to rotate forward and reverse.

[0069] like Figure 3 As shown, the drive motor 2 can be provided with a reducer to achieve low power consumption and large rotational torque output. While ensuring miniaturization, it can adapt to the drive control of the operating levers of more types of circuit breakers (for example, it can drive the closing and opening operations of 630A and below molded case circuit breakers).

[0070] The clutch gear 4 is fixed to the device body 1 , and its input gear 41 is meshed with the motor gear 3 ; the driving gear 5 is rotatably mounted on the device body 1 , and is meshed with the output gear 42 of the clutch gear 4 .

[0071] The clutch gear 4 is a component that plays a key role in the mechanical transmission system, and is composed of an input gear 41, an output gear 42, and a clutch mechanism, wherein the clutch mechanism may include a clutch shaft, an elastic ball, a damping device, etc.; when the clutch mechanism is in a connected state, the torque of the input gear 41 is normally and synchronously transmitted to the output gear 42; when the torque of the input gear 41 is too large, the clutch mechanism will partially or completely separate to disconnect the torque transmission between the input gear 41 and the output gear 42, thereby avoiding damage to the entire transmission system and the operating rod, and improving product reliability and power supply reliability. Regarding the specific connection and coordination between the input gear 41, the output gear 42, and the clutch mechanism, you can refer to the existing design structure and will not elaborate on it.

[0072] The driving gear 5 is provided with a slot 51 extending to its center position and for the circuit breaker operating rod to be inserted into. The slot 51 design allows the operating rod to be quickly inserted and connected thereto, facilitating the operation and control of the operating rod, and effectively improving the modification efficiency. Moreover, under this design, the operating rod can be inserted regardless of whether it is installed forward or reverse, and is not limited by the installation space and position, making the installation and modification more convenient.

[0073] In the present application, the driving gear 5 is preferably designed as a non-full-tooth structure (such as Figure 7 As shown, it can be, for example, a half-tooth structure design), the length of the gear structure designed for meshing is determined according to the circumference of the required operating rotation of the operating lever, so that after the driving gear 5 controls the operating lever to rotate into place, even if it rotates again, it will not be able to drive the operating lever to rotate the molded case circuit breaker due to idling, thereby avoiding damage to the operating lever and the molded case circuit breaker caused by excessive rotation, and protecting the molded case circuit breaker from the perspective of mechanical structure design.

[0074] The low-voltage drawer-type molded case circuit breaker drive device designed in this application has the following beneficial effects:

[0075] 1. The driving motor 2 drives the motor gear 3 to rotate, and the motor gear 3 is engaged with the input gear 41 of the clutch gear 4 to drive the input gear 41 to rotate, thereby driving the output gear 42 of the clutch gear 4, and then the output gear 42 is engaged with the driving gear 5 to drive the driving gear 5 to rotate, thereby driving the operating rod located in the slot 51 to rotate, thereby realizing the electric drive control of the operating rod, and then realizing the electric drive operation of the molded case circuit breaker.

[0076] 2. The number of required parts is small and the size is small, which is suitable for compact drawer-type application space. Moreover, by changing the installation position, it can adapt to different brands of molded case circuit breakers, realizing the universality and interchangeability between molded case circuit breakers and electric operating mechanisms.

[0077] 3. The structure is simple and the renovation and construction is convenient. The renovation and construction time is shortened from the original 3 hours to 10 minutes, which greatly improves labor efficiency and can reduce investment costs by about 20%, further accelerating the pace of digital distribution network construction.

[0078] 4. A clutch gear 4 is configured. When the output torque of the drive motor 2 is too large, the clutch gear 4 can be partially or completely separated to avoid damage to the entire transmission system and the operating lever, thereby improving product reliability and power supply reliability.

[0079] The above is an embodiment of a low-voltage drawer-mounted molded case circuit breaker drive device provided in the embodiment of the present application. The following is an embodiment of a low-voltage drawer-mounted molded case circuit breaker drive device provided in the embodiment of the present application. For details, please refer to Figures 1 to 7 .

[0080] Based on the solution of the above embodiment 1:

[0081] Furthermore, if Figure 1 As shown in the figure, the gear set also includes a first transmission gear 61 and a second transmission gear 62 .

[0082] The first transmission gear 61 and the second transmission gear 62 are coaxially fixedly connected and rotatably mounted on the device body 1; the diameter of the first transmission gear 61 is larger than the second transmission gear 62 and the motor gear 3 (the diameter of the second transmission gear 62 is smaller than the diameter of the input gear 41); the first transmission gear 61 is meshed with the motor gear 3; the second transmission gear 62 is meshed with the input gear 41 of the clutch gear 4.

[0083] The motor gear 3 drives the first transmission gear 61 (large gear) with a large diameter to rotate, and the first transmission gear 61 rotates synchronously with the second transmission gear 62, thereby driving the second transmission gear 62 (small gear) with a small diameter to rotate, and then the second transmission gear 62 drives the input gear 41 to rotate. By adding the first transmission gear 61 and the second transmission gear 62, the transmission torque can be further increased, so as to meet the application requirements of the operation lever operation requiring a larger torque, and further improve the adaptability.

[0084] Furthermore, if Figure 1 as well as Figure 2 As shown, an adjustable mounting bracket 7 is also included; the adjustable mounting bracket 7 is connected to the device body 1 and is used to adjust the installation position of the device body 1 to achieve flexible installation of the device body 1 and further improve the convenience of installation and modification.

[0085] Furthermore, if Figure 2 as well as Figure 4 As shown, the adjustable mounting bracket 7 includes a first bracket 71 ; the first bracket 71 is provided with a first support plate 711 and a second support plate 712 vertically connected to the first support plate 711 .

[0086] The first support plate 711 is provided with a first mounting groove 713 which penetrates the first support plate 711 and is arranged along a vertical straight line direction. The first mounting groove 713 is a strip groove, and the number of which can be designed and changed according to actual needs without limitation. The second support plate 712 is provided with a second mounting groove 714 which penetrates the first support plate 712 and is arranged along a first horizontal straight line direction. The second mounting groove 714 is a strip groove, and the number of which can be designed and changed according to actual needs without limitation.

[0087] The device body 1 is provided with a first fastener 81 that passes through the second mounting groove 714 and fixes the second support plate 712 to the device body 1. The first fastener 81 that passes through the second mounting groove 714 presses the second support plate 712 onto the device body 1 to fix the connection between the first bracket 71 and the device body 1.

[0088] The first bracket 71 of this design can realize installation position adjustment in a vertical straight line direction and a horizontal straight line direction, thereby improving adjustment flexibility.

[0089] Furthermore, the first support plate 711 and the second support plate 712 are integrally formed, for example, by bending, which makes production more convenient.

[0090] Furthermore, if Figure 2 As shown in FIG. 5 , the adjustable mounting bracket 7 further includes a second bracket 72 ; the second bracket 72 is provided with a third support plate and a fourth support plate vertically connected to the third support plate.

[0091] The third support plate is provided with a third mounting groove which runs through the third support plate and is arranged along a second horizontal straight line direction which is perpendicular to the first horizontal straight line direction. The third mounting groove is a strip groove, and the number of which can be designed and changed according to actual needs without limitation. The fourth support plate is provided with a fourth mounting groove which is arranged along the first horizontal straight line direction. The fourth mounting groove is a strip groove, and the number of which can be designed and changed according to actual needs without limitation.

[0092] The device body 1 is provided with a second fastener 82 that passes through the fourth mounting groove and fixes the fourth support plate to the device body 1. The second fastener 82 that passes through the fourth mounting groove presses the second support plate 712 onto the device body 1 to fix the connection between the second bracket 72 and the device body 1.

[0093] The second bracket 72 of this design can realize the installation position adjustment in two mutually perpendicular horizontal straight lines. When used in combination with the first bracket 71, it can further enhance the adjustment flexibility and ensure that the installation is not limited by the installation space and position.

[0094] Furthermore, the third support plate and the fourth support plate are integrally formed, for example, by bending, which makes production more convenient.

[0095] Furthermore, if Figure 2 As shown, the first fastener 81 and the second fastener 82 both include bolts and nuts; the bolts are passed through the device body 1; the nuts are mounted on the bolts, and the second support plate 712 or the fourth support plate is clamped between the heads of the bolts to achieve a fixed connection between the first bracket 71, the second bracket 72 and the device body 1.

[0096] Furthermore, if Figure 1 as well as Figure 6 The device body 1 includes a middle plate 11 , a first side plate 13 and a second side plate 12 .

[0097] The driving motor 2 is fixed on one side of the middle plate 11, and the output shaft passes through the other side of the middle plate 11; the motor gear 3 is fixed on the shaft section of the output shaft extending to the other side of the middle plate 11; the first side plate 13 is fixed in parallel to one side of the middle plate 11 through a first connecting member; the driving gear 5 is rotatably installed between the first side plate 13 and the middle plate 11; the second side plate 12 is fixed in parallel to the other side of the middle plate 11 through a second connecting member; the first transmission gear 61 and the second transmission gear 62 are rotatably installed between the second side plate 12 and the middle plate 11; the clutch gear 4 is passed through the middle plate 11, and its own input gear 41 is located on the other side of the middle plate 11, and the output gear 42 is located on one side of the middle plate 11.

[0098] The device body 1 is assembled by using a plate structure, which has a simple overall structure, convenient material acquisition, low manufacturing cost, compact structure and small volume, and is more convenient for installation, modification and maintenance.

[0099] Furthermore, if Figure 6 As shown, the middle plate 11 includes a first plate portion 111 , a connecting plate portion 112 and a second plate portion 113 .

[0100] The first plate portion 111 and the second plate portion 113 are arranged in parallel and staggered; the connecting plate portion 112 is vertically connected between the edges of one side of the first plate portion 111 and the second plate portion 113, so that the middle plate 11 forms a Z shape; the first side plate 13 is arranged on one side of the first plate portion 111; the second side plate 12 is arranged on one side of the second plate portion 113.

[0101] The first plate portion 111, the second plate portion 113 and the connecting plate portion 112 can be integrally formed for easy manufacturing. The middle plate 11 is designed as a Z-shaped plate to form a sized installation area, making the parts more compact, and also shortening the length of the middle plate 11, making the overall structure more compact.

[0102] The above is a detailed introduction to a low-voltage drawer-type molded case circuit breaker drive device provided by the present application. For a general technician in this field, according to the idea of ​​the embodiment of the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A low voltage drawer type mounted molded case circuit breaker drive device, characterized in that: It comprises a device body (1), a gear set, and a driving motor (2) capable of forward and reverse rotation; The gear set comprises a motor gear (3), a clutch gear (4) and a drive gear (5); The driving motor (2) is fixed to the device body (1), and the output shaft is fixed to the motor gear (3); The clutch gear (4) is fixed to the device body (1), and its input gear (41) is meshed with the motor gear (3); The driving gear (5) is rotatably mounted on the device body (1) and meshes with the output gear (42) of the clutch gear (4); The driving gear (5) is provided with a slot (51) extending to the center of the driving gear (5) and for the circuit breaker operating rod to be inserted into.

2. A low-voltage drawer-type molded case circuit breaker driving device according to claim 1, characterized in that: The gear set further comprises a first transmission gear (61) and a second transmission gear (62); The first transmission gear (61) and the second transmission gear (62) are coaxially fixedly connected and rotatably mounted on the device body (1); The diameter of the first transmission gear (61) is larger than that of the second transmission gear (62) and the motor gear (3); The first transmission gear (61) is meshed with the motor gear (3); The second transmission gear (62) is meshed with the input gear (41) of the clutch gear (4).

3. A low-voltage drawer-type molded case circuit breaker driving device according to claim 1, characterized in that: Also included is an adjustable mounting bracket (7); The adjustable mounting bracket (7) is connected to the device body (1) and is used to adjust the mounting position of the device body (1).

4. A low-voltage drawer-type molded case circuit breaker driving device according to claim 3, characterized in that: The adjustable mounting bracket (7) comprises a first bracket (71); The first bracket (71) is provided with a first support plate (711) and a second support plate (712) vertically connected to the first support plate (711); The first support plate (711) is provided with a first installation groove (713) penetrating the first support plate and arranged along a vertical straight line direction; The second support plate (712) is provided with a second installation groove (714) penetrating the second support plate and arranged along the first horizontal straight line direction; The device body (1) is provided with a first fastener (81) that passes through the second mounting groove (714) and fixes the second support plate (712) to the device body (1).

5. A low-voltage drawer-type molded case circuit breaker driving device according to claim 4, characterized in that: The first support plate (711) and the second support plate (712) are integrally formed.

6. A low-voltage drawer-type molded case circuit breaker driving device according to claim 4, characterized in that: The adjustable mounting bracket (7) further comprises a second bracket (72); The second bracket (72) is provided with a third support plate and a fourth support plate vertically connected to the third support plate; The third support plate is provided with a third mounting groove penetrating the third support plate and arranged along a second horizontal straight line direction perpendicular to the first horizontal straight line direction; The fourth support plate is provided with a fourth mounting groove arranged along the first horizontal straight line direction; The device body (1) is provided with a second fastener (82) which passes through the fourth mounting slot and fixes the fourth support plate to the device body (1).

7. A low-voltage drawer-type molded case circuit breaker driving device according to claim 6, characterized in that: The third support plate and the fourth support plate are integrally formed.

8. A low-voltage drawer-type molded case circuit breaker driving device according to claim 6, characterized in that: The first fastener (81) and the second fastener (82) both comprise a bolt and a nut; The bolt is passed through the device body (1); The nut is sleeved on the bolt and clamps the second support plate (712) or the fourth support plate between the nut and the head of the bolt.

9. A low-voltage drawer-type molded case circuit breaker driving device according to claim 2, characterized in that: The device body (1) comprises a middle plate (11), a first side plate (13) and a second side plate (12); The drive motor (2) is fixed on one side of the middle plate (11), and the output shaft passes through the other side of the middle plate (11); The motor gear (3) is fixed to the shaft section of the output shaft extending to the other side of the intermediate plate (11); The first side plate (13) is fixed in parallel to one side of the middle plate (11) via a first connecting member; The driving gear (5) is rotatably mounted between the first side plate (13) and the middle plate (11); The second side plate (12) is fixed in parallel to the other side of the middle plate (11) via a second connecting member; The first transmission gear (61) and the second transmission gear (62) are rotatably mounted between the second side plate (12) and the middle plate (11); The clutch gear (4) is disposed on the intermediate plate (11), and its input gear (41) is located on the other side of the intermediate plate (11), and its output gear (42) is located on one side of the intermediate plate (11).

10. A low-voltage drawer-type molded case circuit breaker driving device according to claim 9, characterized in that: The middle plate (11) comprises a first plate portion (111), a connecting plate portion (112) and a second plate portion (113); The first plate portion (111) and the second plate portion (113) are arranged in parallel and staggered manner; The connecting plate portion (112) is vertically connected between the first plate portion (111) and one side edge of the second plate portion (113), so that the middle plate (11) forms a Z shape; The first side plate (13) is arranged on one side of the first plate portion (111); The second side plate (12) is arranged on one side of the second plate portion (113).

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