Clutch mechanism and circuit breaker

Abstract

The utility model provides a clutch mechanism and a circuit breaker. The clutch mechanism comprises a first operation structure, a second operation structure and a transmission wheel. A motor in the first operation structure drives the first driving wheel to rotate. And a first structure block arranged on the first driving wheel is clamped with an inner tooth groove in the transmission wheel, so that the first driving wheel drives the transmission wheel to rotate, and the circuit breaker is electrically controlled to perform switching-on and switching-off actions. The second operating structure may include a handle and a second drive wheel. A handle in the second operation structure drives the second driving wheel to rotate. And a second structural block arranged on the second driving wheel is clamped with an inner tooth groove in the transmission wheel, so that the second driving wheel drives the transmission wheel to rotate, and the circuit breaker is manually controlled to perform opening and closing actions. The first sliding groove is formed in the first driving wheel, the second sliding groove is formed in the second driving wheel, the first driving wheel and the second driving wheel are prevented from rotating at the same time, and therefore the safety of the circuit breaker is guaranteed, and meanwhile the production cost of the circuit breaker is reduced.

Description

Technical Field

[0001] This application relates to the field of circuit breaker technology, and in particular to a clutch mechanism and a circuit breaker. Background Technology

[0002] A circuit breaker may include a clutch mechanism, which enables the circuit breaker to perform manual and electric opening and closing operations. The opening and closing operations include opening and closing actions. Opening and closing actions are used to disconnect and restore the circuit connection in the circuit breaker, respectively.

[0003] In related technologies, the clutch mechanism may include an electrically operated structure and a manually operated structure. The electrically operated structure is connected to the circuit breaker's opening and closing mechanism, enabling it to control the circuit breaker to perform electrically operated opening and closing actions. The manually operated structure is connected to the circuit breaker's opening and closing mechanism, enabling it to control the circuit breaker to perform manually operated opening and closing actions. Since both the electrically and manually operated structures are connected to the circuit breaker's opening and closing mechanism, their simultaneous operation will cause the other two structures to operate concurrently.

[0004] When the electric and manual operating mechanisms operate simultaneously, safety hazards arise at the manual operating end, and the structural strength of the electric operating mechanism needs to be increased to meet the requirements of simultaneous operation, thus increasing production costs. Utility Model Content

[0005] This application provides a clutch mechanism and a circuit breaker that prevents the electric and manual operating mechanisms from operating simultaneously, thereby ensuring the safety of the circuit breaker while reducing its production cost.

[0006] In a first aspect, this application provides a clutch mechanism, comprising: a first operating structure, a second operating structure, and a transmission wheel. The first operating structure includes a motor and a first drive wheel. The motor is connected to the first drive wheel and drives the first drive wheel to rotate. The second operating structure may include a handle and a second drive wheel. The handle is connected to the second drive wheel and drives the second drive wheel to rotate. The transmission wheel drives the circuit breaker's opening and closing mechanism. The transmission wheel has an internal toothed groove. The first drive wheel has a first structural block, and the second drive wheel has a second structural block. The first structural block engages in the internal toothed groove, causing the first drive wheel to drive the transmission wheel to rotate. The second structural block engages in the internal toothed groove, causing the second drive wheel to drive the transmission wheel to rotate. The first drive wheel has a first sliding groove, and the second drive wheel has a second sliding groove. During the process of the motor driving the first drive wheel to rotate, the transmission wheel pushes against the second structural block, causing the second structural block to slide within the second sliding groove and leave the internal toothed groove. During the process of the handle driving the second drive wheel to rotate, the transmission wheel pushes against the first structural block, causing the first structural block to slide within the first sliding groove and leave the internal toothed groove.

[0007] According to the first aspect, the clutch mechanism may include a first operating structure, a second operating structure, and a transmission wheel. The first operating structure includes a motor and a first drive wheel. The motor in the first operating structure drives the first drive wheel to rotate. A first structural block on the first drive wheel engages with an internal tooth groove in the transmission wheel, causing the first drive wheel to drive the transmission wheel to rotate, thereby realizing the opening and closing actions of the electrically controlled circuit breaker. The second operating structure may include a handle and a second drive wheel. The handle in the second operating structure drives the second drive wheel to rotate. A second structural block on the second drive wheel engages with an internal tooth groove in the transmission wheel, causing the second drive wheel to drive the transmission wheel to rotate, thereby realizing the manual control of the circuit breaker to perform opening and closing actions. A first sliding groove is provided on the first drive wheel, and a second sliding groove is provided on the second drive wheel to prevent the first and second drive wheels from rotating simultaneously, thereby ensuring the safety of the circuit breaker while reducing its production cost.

[0008] In one possible design, a first elastic element is provided within a first slide groove. The first elastic element connects the bottom of the first slide groove to a first structural block. The first elastic element has a restoring force to return the first structural block to its inner toothed groove. A second elastic element is provided within a second slide groove. The second elastic element connects the bottom of the second slide groove to a second structural block. The second elastic element has a restoring force to return the second structural block to its inner toothed groove.

[0009] Based on the description of the above embodiments, while the first drive wheel and the second drive wheel cannot rotate simultaneously, the first elastic element in the first slide groove and the second elastic element in the second slide groove enable both the first operating structure and the second operating structure to smoothly control the circuit breaker to perform opening and closing actions.

[0010] In one possible design, both the first and second elastic elements are springs. A first limiting post is provided on the first structural block. A second limiting post is provided on the second structural block. The first elastic element is sleeved on the first limiting post. The second elastic element is sleeved on the second limiting post.

[0011] Based on the description of the above embodiments, both the first elastic element and the second elastic element are springs. The first elastic element is sleeved on the first limiting post provided on the first structural block, and the second elastic element is sleeved on the second limiting post provided on the second structural block, which reduces the wear of the first and second structural blocks, thereby improving the service life of the clutch mechanism.

[0012] In one possible design, the motor has an output shaft. A first engaging structure is provided on the output shaft. A second engaging structure is provided on the first drive wheel. The first and second engaging structures cooperate to connect, enabling the output shaft to drive the first drive wheel to rotate.

[0013] Based on the description of the above embodiments, the first snap-fit ​​structure provided on the output shaft is connected with the second snap-fit ​​structure provided on the first drive wheel so that the output shaft can drive the first drive wheel to rotate, so that the motor can smoothly drive the first drive wheel, thereby realizing the opening and closing action of the electric control circuit breaker.

[0014] In one possible design, a third locking structure is provided at the end of the handle near the second drive wheel. A fourth locking structure is provided on the second drive wheel. The third and fourth locking structures cooperate to allow the handle to drive the second drive wheel to rotate.

[0015] Based on the description of the above embodiments, the third locking structure provided on the handle is connected with the fourth locking structure provided on the second drive wheel, so that the handle can drive the second drive wheel to rotate. Thus, the handle can smoothly drive the second drive wheel, thereby realizing the manual control of the circuit breaker to perform opening and closing actions.

[0016] In one possible design, the output shaft is simultaneously mounted on the transmission wheel, the first drive wheel, and the second drive wheel, so that the output shaft, the transmission wheel, the first drive wheel, the second drive wheel, and the handle rotate coaxially.

[0017] Based on the description of the above embodiments, the output shaft is simultaneously mounted on the transmission wheel, the first drive wheel, and the second drive wheel, so that the output shaft, the transmission wheel, the first drive wheel, the second drive wheel, and the handle rotate coaxially. This can save the lateral installation space in the clutch mechanism and reduce the production cost of the circuit breaker.

[0018] In one possible design, the clutch mechanism may also include a fastener. The fastener engages with the second drive wheel, connecting or abutting against the end of the output shaft near the second drive wheel, to limit the displacement of the first drive wheel, transmission wheel, and second drive wheel in a first direction. The first direction is the direction in which the output shaft extends.

[0019] Based on the description of the above embodiments, by setting fasteners in the clutch mechanism to limit the displacement of the first drive wheel, transmission wheel and second drive wheel in the first direction, it is ensured that the first structural block and the second structural block cannot leave the internal tooth groove in the first direction, so that the first operating structure can smoothly realize the opening and closing action of the electrically controlled circuit breaker, and the second operating structure can smoothly realize the manual control of the circuit breaker to perform opening and closing action.

[0020] In one possible design, the side of the transmission wheel closest to the first drive wheel is designated as the first surface. A protruding structure is provided on the first surface. The projected area of ​​the protruding structure on the first surface is smaller than the area of ​​the first surface. The first drive wheel presses against the protruding structure.

[0021] Based on the description of the above embodiments, the first drive wheel presses against the protruding structure in the transmission wheel, which saves longitudinal space while ensuring the service life of the clutch mechanism.

[0022] In one possible design, the drive wheel can be provided with multiple internal tooth grooves.

[0023] Based on the description of the above embodiments, adding multiple internal tooth grooves to the transmission wheel can reduce the idle travel of the first drive wheel and the second drive wheel, and shorten the response time of the first operating structure and the second operating structure controlling the circuit breaker to perform opening and closing actions.

[0024] Secondly, this application provides a circuit breaker, including a closing / opening mechanism and a clutch mechanism as described in any of the above embodiments. The closing / opening mechanism and the clutch mechanism are linked. The clutch mechanism is used to control the closing / opening mechanism to perform closing / opening actions. The closing / opening mechanism performs closing / opening actions to control the on / off state of the circuit breaker.

[0025] The circuit breaker provided in the second aspect above has the same beneficial effects as the first aspect and the various possible implementations of the first aspect, and will not be repeated here. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of one structure of the clutch mechanism in an embodiment of this application.

[0028] Figure 2 This is a cross-sectional view of the clutch mechanism in an embodiment of this application.

[0029] Figure 3 This is a schematic diagram of a transmission wheel in one embodiment of this application.

[0030] Figure 4 This is a schematic diagram of one structure of the first drive wheel in an embodiment of this application.

[0031] Figure 5 This is a schematic diagram of one structure of the second drive wheel in an embodiment of this application.

[0032] Figure 6 for Figure 2 A cross-sectional view along the AA direction.

[0033] Figure 7 for Figure 2A cross-sectional view along the BB direction.

[0034] Figure 8 This is a schematic diagram of the structure of a motor in one embodiment of this application.

[0035] Figure 9 for Figure 5 Another perspective view.

[0036] Figure 10 for Figure 2 A magnified view of section C.

[0037] Explanation of reference numerals in the attached figures:

[0038] 100-Clutch mechanism;

[0039] 1-First operating structure; 11-Motor; 111-Output shaft; 1111-First snap-fit ​​structure; 1112-Threaded hole; 12-First drive wheel; 121-Second snap-fit ​​structure; 13-First structural block; 131-First limiting post; 14-First sliding groove;

[0040] 2-Second operating structure; 21-Handle; 22-Second drive wheel; 221-Fourth snap-fit ​​structure; 23-Second structural block; 231-Second limiting post; 24-Second sliding groove;

[0041] 3-Drive wheel; 31-Internal tooth groove; 32-Base; 33-Boss; 34-Linkage hole; 35-Protruding structure;

[0042] 4-Spring;

[0043] 5- Bolt; 51- Bolt head; 52- Clip block;

[0044] X - First direction. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0047] The terms "comprising" and "having," and any variations thereof, used in the specification, claims, and drawings of this application are intended to cover without excluding other meanings. The words "a" or "an" do not exclude the presence of multiples.

[0048] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0049] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0050] The directional terms appearing in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. For example, in the description of this application, terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0051] Furthermore, the descriptions of directions such as the X direction, Y direction, and Z direction used to explain the operation and construction of the components in this embodiment are not absolute but relative. Although these directions are appropriate when the components are in the positions shown in the figure, they should be interpreted differently when these positions change to correspond to the changes.

[0052] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0053] In the description of this application, unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more (including two groups).

[0054] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, "connection" or "linkage" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by fasteners, such as a connection fixed by screws, bolts, or other fasteners; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. In circuit structures, "connection" or "linkage" can refer not only to a physical connection but also to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as the circuit is connected; it can also refer to the internal connection of two components. Signal connection can refer not only to signal connection through a circuit but also to signal connection through a media, such as radio waves. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] A circuit breaker is an electrical device used to interrupt or close the operating current or fault current in a high-voltage circuit. It can quickly cut off the power supply when a circuit fault occurs, protecting the circuit and related equipment from damage.

[0056] A circuit breaker may include a clutch mechanism, which enables the circuit breaker to perform manual and electric opening and closing operations. The opening and closing operations include opening and closing actions. Opening and closing actions are used to disconnect and restore the circuit connection in the circuit breaker, respectively.

[0057] In related technologies, the clutch mechanism may include an electrically operated structure and a manually operated structure. The electrically operated structure is connected to the circuit breaker's opening and closing mechanism, enabling it to control the circuit breaker to perform electrically operated opening and closing actions. The manually operated structure is connected to the circuit breaker's opening and closing mechanism, enabling it to control the circuit breaker to perform manually operated opening and closing actions. Since both the electrically and manually operated structures are connected to the circuit breaker's opening and closing mechanism, their simultaneous operation will cause the other two structures to operate concurrently.

[0058] When the electric operating mechanism and the manual operating mechanism operate simultaneously, it can create safety hazards on the manual operating end. It is also necessary to improve the structural strength of the electric operating mechanism to meet the requirements of simultaneous operation, which increases the production cost of the circuit breaker.

[0059] Based on this, this application provides a clutch mechanism and a circuit breaker. By improving the connection method between the electrically operated structure and the manually operated structure, it prevents the simultaneous operation of the electrically operated structure and the manually operated structure, thereby ensuring the safety of the circuit breaker while reducing its production cost. The following is in conjunction with... Figure 1-10 Please provide a detailed explanation.

[0060] In a first aspect, this application provides a clutch mechanism 100, comprising: a first operating structure 1, a second operating structure 2, and a transmission wheel 3. The first operating structure 1 includes a motor 11 and a first drive wheel 12. The motor 11 is connected to the first drive wheel 12 and is used to drive the first drive wheel 12 to rotate. The second operating structure 2 may include a handle 21 and a second drive wheel 22. The handle 21 is connected to the second drive wheel 22 and is used to drive the second drive wheel 22 to rotate. The transmission wheel 3 is used to drive the opening and closing mechanism of a circuit breaker. The transmission wheel 3 is provided with an internal toothed groove 31. The first drive wheel 12 is provided with a first structural block 13, and the second drive wheel 22 is provided with a second structural block 23. The first structural block 13 is engaged in the internal toothed groove 31, causing the first drive wheel 12 to drive the transmission wheel 3 to rotate. The second structural block 23 is engaged in the internal toothed groove 31, causing the second drive wheel 22 to drive the transmission wheel 3 to rotate. The first drive wheel 12 is provided with a first sliding groove 14, and the second drive wheel 22 is provided with a second sliding groove 24. During the process of the motor 11 driving the first drive wheel 12 to rotate, the transmission wheel 3 pushes against the second structural block 23, causing the second structural block 23 to slide within the second slide groove 24 and leave the internal tooth groove 31. During the process of the handle 21 driving the second drive wheel 22 to rotate, the transmission wheel 3 pushes against the first structural block 13, causing the first structural block 13 to slide within the first slide groove 14 and leave the internal tooth groove 31.

[0061] like Figure 1 and Figure 2 As shown, the first operating structure 1 includes a motor 11 and a first drive wheel 12.

[0062] In the first operating structure 1, the motor 11 provides power to the first drive wheel 12, enabling the first drive wheel 12 to drive the transmission wheel 3. The transmission wheel 3 is used to drive the circuit breaker's opening and closing mechanism, thereby enabling the first operating structure 1 to electrically control the circuit breaker to perform opening and closing operations.

[0063] Specifically, the output shaft 111 of the motor 11 is connected to the first drive wheel 12. When the motor 11 starts, the output shaft 111 of the motor 11 can drive the first drive wheel 12 to rotate.

[0064] like Figure 1 and Figure 2 As shown, the second operating structure 2 may include a handle 21 and a second drive wheel 22.

[0065] The handle 21 in the second operating structure 2 provides power to the second drive wheel 22, enabling the second drive wheel 22 to drive the transmission wheel 3. The transmission wheel 3 is used to drive the circuit breaker's opening and closing mechanism, thereby allowing the second operating structure 2 to manually control the circuit breaker to perform opening and closing actions.

[0066] Specifically, the handle 21 is connected to the second drive wheel 22. When the operator turns the handle 21, the handle 21 can drive the second drive wheel 22 to rotate.

[0067] The transmission wheel 3 is used to drive the opening and closing mechanism of the circuit breaker. Specifically, as follows: Figure 1 and Figure 3 As shown, the transmission wheel 3 may include a base 32, a boss 33, and a linkage hole 34.

[0068] The base 32 can be linked with the circuit breaker's opening and closing mechanism, enabling the transmission wheel 3 to drive the circuit breaker to perform opening and closing actions. For example, an external gear can be provided on the base 32, allowing the base 32 to be linked with the opening and closing mechanism through gear meshing.

[0069] The boss 33 is structurally connected to the base 32, and the boss 33 is provided with an internal tooth groove 31.

[0070] A first structural block 13 can be installed on the first drive wheel 12. The first structural block 13 is engaged in the internal tooth groove 31, so that the first drive wheel 12 can drive the boss 33 to move, thereby driving the transmission wheel 3 to move. That is, the movement of the first drive wheel 12 can control the circuit breaker to perform opening and closing operations.

[0071] A second structural block 23 can be installed on the second drive wheel 22. The second structural block 23 is engaged in the internal tooth groove 31, so that the second drive wheel 22 can drive the boss 33 to move, thereby driving the transmission wheel 3 to move. That is, the movement of the second drive wheel 22 can control the circuit breaker to perform opening and closing operations.

[0072] Furthermore, such as Figure 2 and Figure 3 As shown, the boss 33 has a certain thickness in the first direction X, allowing the first drive wheel 12 and the second drive wheel 22 to stack along the first direction X and simultaneously engage in the internal tooth groove 31 of the boss 33. Both the first drive wheel 12 and the second drive wheel 22 drive the transmission wheel 3 through the internal tooth groove 31, enabling the first operating structure 1 and the second operating structure 2 to control the opening and closing actions of the circuit breaker through the same transmission wheel 3. This simplifies the transmission chain and reduces the production cost of the circuit breaker.

[0073] Among them, with Figure 2 Taking the placement direction of the clutch mechanism 100 as an example, the first direction X is the height direction of the boss 33.

[0074] The linkage hole 34 passes through the base 32 and is used to connect the two sides of the base 32.

[0075] The motor 11 is located on one side of the base 32, and the first drive wheel 12 is located on the other side of the base 32. The output shaft 111 of the motor 11 is fitted into the linkage hole 34 and connected to the first drive wheel 12.

[0076] When the motor 11 drives the first drive wheel 12 to rotate, the first drive wheel 12 drives the transmission wheel 3 to rotate. At this time, because the second structural block 23 is engaged with the internal tooth groove 31, the second drive wheel 22 rotates together with the transmission wheel 3 and transmits the rotation to the handle 21. The rotation of the handle 21 will injure the operator and cause a safety problem.

[0077] Furthermore, when the handle 21 drives the second drive wheel 22 to rotate, the second drive wheel 22 drives the transmission wheel 3 to rotate. At this time, because the first structural block 13 is engaged with the internal tooth groove 31, the first drive wheel 12 rotates together with the transmission wheel 3 and transmits the rotation to the output shaft 111 of the motor 11. The rotation of the output shaft 111 requires high mechanical resistance and static friction, which makes it difficult to operate the handle 21 and requires increasing the strength of the second operating structure 2 to drive the output shaft 111 of the motor 11 to rotate, thereby increasing the production cost of the circuit breaker.

[0078] Therefore, it is necessary to prevent the first drive wheel 12 and the second drive wheel 22 from rotating simultaneously. This can be achieved by setting a feature on the first drive wheel 12 such as... Figure 4 The first groove 14 shown is provided on the second drive wheel 22 as follows: Figure 5 The second groove 24 is shown.

[0079] When the first drive wheel 12 drives the transmission wheel 3 to rotate, the transmission wheel 3 pushes against the second structural block 23, causing the second structural block 23 to slide in the second slide groove 24 and leave the inner tooth groove 31, thereby preventing the second drive wheel 22 from rotating with the transmission wheel 3.

[0080] Similarly, when the second drive wheel 22 drives the transmission wheel 3 to rotate, the transmission wheel 3 pushes against the first structural block 13, causing the first structural block 13 to slide in the first groove 14 and leave the inner tooth groove 31, thereby preventing the first drive wheel from rotating with the transmission wheel 3.

[0081] Specifically, the first structural block 13 is provided with a first abutting surface and a second abutting surface. The second structural block 23 is provided with a third abutting surface and a fourth abutting surface. The internal tooth groove 31 is provided with a fifth abutting surface and a sixth abutting surface.

[0082] When the first drive wheel 12 drives the transmission wheel 3 to rotate, the first contact surface abuts against the third contact surface, and the force applied by the first contact surface to the third contact surface causes the transmission wheel 3 to rotate in the rotation direction of the first drive wheel 12.

[0083] At the same time, the fourth abutting surface abuts against the sixth abutting surface, and the force applied by the fourth abutting surface to the sixth abutting surface causes the second structural block 23 to slide in the second slide groove 24 until the second structural block 23 leaves the inner tooth groove 31, thereby preventing the second drive from rotating together with the transmission wheel 3.

[0084] When the second drive wheel 22 drives the transmission wheel 3 to rotate, the fifth contact surface abuts against the third contact surface, and the force applied by the fifth contact surface to the third contact surface causes the transmission wheel 3 to rotate in the rotation direction of the second drive wheel 22.

[0085] At the same time, the fourth abutting surface abuts against the second abutting surface, and the force applied by the fourth abutting surface to the second abutting surface causes the first structural block 13 to slide in the first sliding groove 14 until the first structural block 13 leaves the inner tooth groove 31, thereby preventing the first drive wheel 12 from rotating together with the transmission wheel 3.

[0086] Furthermore, multiple first structural blocks 13 can be provided on the first drive wheel 12 to enable the first drive wheel 12 to drive the transmission wheel 3 to rotate more stably. Similarly, multiple second structural blocks 23 can be provided on the second drive wheel 22 to enable the second drive wheel 22 to drive the transmission wheel 3 to rotate more stably. For example, as... Figure 6 and Figure 7 As shown, the first drive wheel 12 is provided with two first structural blocks 13, and the second drive wheel 22 is provided with two second structural blocks 23.

[0087] In summary, when the first drive wheel 12 is the driving wheel and the second drive wheel 22 is the driven wheel, the second structural block 23 slides within the second slide groove 24 to prevent the second drive wheel 22 and the first drive wheel 12 from operating simultaneously, thus ensuring the safety of the circuit breaker. When the first drive wheel 12 is the driven wheel and the second drive wheel 22 is the driving wheel, the first structural block 13 slides within the first slide groove 14 to prevent the first drive wheel 12 and the second drive wheel 22 from operating simultaneously, thereby reducing the structural strength requirements of the first operating structure 1 and lowering the production cost of the circuit breaker.

[0088] The clutch mechanism 100 provided in the first aspect of this application may include a first operating structure 1, a second operating structure 2, and a transmission wheel 3. The first operating structure 1 includes a motor 11 and a first drive wheel 12. The motor 11 in the first operating structure 1 drives the first drive wheel 12 to rotate. A first structural block 13 on the first drive wheel 12 engages with the internal tooth groove 31 in the transmission wheel 3, causing the first drive wheel 12 to drive the transmission wheel 3 to rotate, thereby realizing the opening and closing action of the electrically controlled circuit breaker. The second operating structure 2 may include a handle 21 and a second drive wheel 22. The handle 21 in the second operating structure 2 drives the second drive wheel 22 to rotate. A second structural block 23 on the second drive wheel 22 engages with the internal tooth groove 31 in the transmission wheel 3, causing the second drive wheel 22 to drive the transmission wheel 3 to rotate, thereby realizing the manual control of the circuit breaker to perform opening and closing actions. A first sliding groove 14 is provided on the first drive wheel 12, and a second sliding groove 24 is provided on the second drive wheel 22 to prevent the first drive wheel 12 and the second drive wheel 22 from rotating simultaneously, thereby ensuring the safety of the circuit breaker while reducing the production cost of the circuit breaker.

[0089] Furthermore, in some embodiments, a first elastic element is provided within the first slide groove 14. The first elastic element connects the bottom of the first slide groove 14 and the first structural block 13. The first elastic element has a restoring force for returning the first structural block 13 to the inner tooth groove 31. A second elastic element is provided within the second slide groove 24. The second elastic element connects the bottom of the second slide groove 24 and the second structural block 23. The second elastic element has a restoring force for returning the second structural block 23 to the inner tooth groove 31.

[0090] A first elastic element is provided within the first slide groove 14. The first elastic element connects the bottom of the first slide groove 14 to the first structural block 13. When the first structural block 13 slides within the first slide groove 14, the first elastic element generates a restoring force. The restoring direction of the restoring force is opposite to the direction of the push of the transmission wheel 3.

[0091] After the second operating structure 2 finishes its operation, the reset force can cause the first structural block 13 to return to the internal tooth groove 31, so that when the first operating structure 1 is activated, the first drive wheel 12 can drive the transmission wheel 3 to rotate.

[0092] A second elastic element is provided within the second slide groove 24. The second elastic element connects the bottom of the second slide groove 24 to the second structural block 23. When the second structural block 23 slides within the second slide groove 24, the second elastic element generates a restoring force. The direction of the restoring force is opposite to the direction of the push from the transmission wheel 3.

[0093] After the first operating structure 1 finishes its operation, the reset force can cause the second structural block 23 to return to the internal tooth groove 31, so that when the second operating structure 2 is activated, the second drive wheel 22 can drive the transmission wheel 3 to rotate.

[0094] In summary, the first elastic element can reset the first structural block 13 in a timely manner, thereby enabling the first operating structure 1 to smoothly control the circuit breaker to perform opening and closing actions.

[0095] Similarly, the second elastic element can reset the second structural block 23 in a timely manner, thereby enabling the second operating structure 2 to smoothly control the circuit breaker to perform opening and closing actions.

[0096] For example, the first elastic element may be a spring 4 or a sheet spring, and this application does not specifically limit it. Similarly, the second elastic element may be a spring 4 or a sheet spring.

[0097] According to the description of the above embodiment, while the first drive wheel 12 and the second drive wheel 22 cannot rotate at the same time, the first elastic element in the first slide groove 14 and the second elastic element in the second slide groove 24 enable both the first operating structure 1 and the second operating structure 2 to smoothly control the circuit breaker to perform opening and closing actions.

[0098] Furthermore, in some embodiments, such as Figure 6 and Figure 7 As shown, both the first and second elastic elements are springs 4. A first limiting post 131 is provided on the first structural block 13. A second limiting post 231 is provided on the second structural block 23. The first elastic element is sleeved on the first limiting post 131. The second elastic element is sleeved on the second limiting post 231.

[0099] Spring 4 is compressed by an external force, generating a restoring potential energy.

[0100] When the first elastic element is spring 4, the first structural block 13 abuts against spring 4 and applies external force to spring 4.

[0101] Specifically, the spring 4 is sleeved on the first limiting post 131, so that the spring 4 can only move in the compression direction, avoiding lateral friction between the spring 4 and the first structural block 13, reducing the wear of the first structural block 13, and thus improving the service life of the clutch mechanism 100.

[0102] Similarly, when the second elastic element is spring 4, spring 4 is sleeved on the second limiting post 231, so that spring 4 can only move in the compression direction, avoiding lateral friction between spring 4 and the second structural block 23, reducing the wear of the second structural block 23, thereby improving the service life of clutch mechanism 100.

[0103] In summary, both the first elastic element and the second elastic element are springs 4. The first elastic element is sleeved on the first limiting post 131 provided on the first structural block 13, and the second elastic element is sleeved on the second limiting post 231 provided on the second structural block 23, which reduces the wear of the first structural block 13 and the second structural block 23, thereby improving the service life of the clutch mechanism 100.

[0104] In some embodiments, such as Figure 8 As shown, the motor 11 has an output shaft 111. A first snap-fit ​​structure 1111 is provided on the output shaft 111. A second snap-fit ​​structure 121 is provided on the first drive wheel 12. The first snap-fit ​​structure 1111 and the second snap-fit ​​structure 121 are connected to each other, so that the output shaft 111 can drive the first drive wheel 12 to rotate.

[0105] The connection method between the first snap-fit ​​structure 1111 and the second snap-fit ​​structure 121 can include, but is not limited to, the following two:

[0106] In the first connection method, the first snap-fit ​​structure 1111 and the second snap-fit ​​structure 121 are connected by a hole and shaft.

[0107] Specifically, such as Figure 4 and Figure 8 As shown, the first snap-fit ​​structure 1111 can be an irregularly shaped structural block or an irregularly shaped structural hole. Correspondingly, the second snap-fit ​​structure 121 can be an irregularly shaped structural hole or an irregularly shaped structural block. The irregularly shaped structural block and the irregularly shaped structural hole have the same shape, so that the irregularly shaped structural block can be fitted into the irregularly shaped structural hole, thereby preventing relative rotation between the first snap-fit ​​structure 1111 and the second snap-fit ​​structure 121, and thus enabling the output shaft 111 to drive the first drive wheel 12 to rotate.

[0108] In the second connection method, the first snap-fit ​​structure 1111 and the second snap-fit ​​structure 121 are connected by a keyway.

[0109] Specifically, the first locking structure 1111 is a first keyway formed on the output shaft 111, and the second locking structure 121 is a second keyway formed on the first drive wheel 12. The first keyway and the second keyway can be connected by a key, thereby enabling the output shaft 111 to drive the first drive wheel 12 to rotate.

[0110] In summary, by connecting the first snap-fit ​​structure 1111 on the output shaft 111 with the second snap-fit ​​structure 121 on the first drive wheel 12, the output shaft 111 can drive the first drive wheel 12 to rotate, so that the motor 11 can smoothly drive the first drive wheel 12, thereby realizing the opening and closing action of the electric control circuit breaker.

[0111] In some embodiments, such as Figure 9As shown, the handle 21 has a third locking structure at the end near the second drive wheel 22. The second drive wheel 22 has a fourth locking structure 221. The third locking structure and the fourth locking structure 221 are connected to each other, so that the handle 21 can drive the second drive wheel 22 to rotate.

[0112] The connection method between the third snap-fit ​​structure and the fourth snap-fit ​​structure 221 can include, but is not limited to, the following two:

[0113] In connection method one, the third snap-fit ​​structure and the fourth snap-fit ​​structure 221 are connected by a hole shaft.

[0114] Specifically, the third snap-fit ​​structure can be an irregularly shaped structural block or an irregularly shaped structural hole. Correspondingly, the fourth snap-fit ​​structure 221 is an irregularly shaped structural hole or an irregularly shaped structural block. The irregularly shaped structural block and the irregularly shaped structural hole have the same shape, so that the irregularly shaped structural block can be fitted into the irregularly shaped structural hole, thereby preventing relative rotation between the third snap-fit ​​structure and the fourth snap-fit ​​structure 221, and thus allowing the handle 21 to drive the second drive wheel 22 to rotate.

[0115] In the second connection method, the third snap-fit ​​structure and the fourth snap-fit ​​structure 221 are connected by a keyway.

[0116] Specifically, the third locking structure is a first keyway formed on the handle 21, and the second locking structure 121 is a second keyway formed on the second drive wheel 22. The first keyway and the second keyway can be connected by a key, thereby enabling the handle 21 to drive the second drive wheel 22 to rotate.

[0117] In summary, by connecting the third locking structure on the handle 21 with the fourth locking structure 221 on the second drive wheel 22, the handle 21 can drive the second drive wheel 22 to rotate, thus enabling the handle 21 to smoothly drive the second drive wheel 22 and thereby realize the manual control of the circuit breaker to perform opening and closing actions.

[0118] In some embodiments, such as Figure 2 As shown, the output shaft 111 is simultaneously mounted on the transmission wheel 3, the first drive wheel 12, and the second drive wheel 22, so that the output shaft 111, the transmission wheel 3, the first drive wheel 12, the second drive wheel 22, and the handle 21 rotate coaxially.

[0119] Specifically, both the first drive wheel 12 and the second drive wheel 22 are provided with through holes so that the output shaft 111 can be sleeved on the first drive wheel 12 and the second drive wheel 22. Furthermore, the output shaft 111 is sleeved on the transmission wheel 3 through the linkage hole 34 on the transmission wheel 3.

[0120] When the output shaft 111 is simultaneously mounted on the transmission wheel 3 and the first drive wheel 12, both the transmission wheel 3 and the first drive wheel 12 rotate about the axis of the output shaft 111.

[0121] When the output shaft 111 is further fitted onto the second drive wheel 22, the second drive wheel 22, the transmission wheel 3, and the first drive wheel 12 all rotate about the axis of the output shaft 111. Since the second drive wheel 22 also needs to rotate about the axis of the handle 21, the axis of the output shaft 111 is collinear with the axis of the handle 21. That is, the motor 11, the transmission wheel 3, the first drive wheel 12, the second drive wheel 22, and the handle 21 are all longitudinally arranged along the same axis, thereby saving lateral installation space in the clutch mechanism 100 and reducing the production cost of the circuit breaker.

[0122] Furthermore, the first operating structure 1, which electrically controls the circuit breaker, requires a first transmission chain to perform opening and closing actions. The second operating structure 2, which manually controls the circuit breaker, requires a second transmission chain to perform opening and closing actions.

[0123] In the clutch mechanism 100 of this application, both the first drive wheel 12 and the second drive wheel 22 control the circuit breaker to perform opening and closing actions through the transmission wheel 3. That is, the first transmission chain and the second transmission chain share a single transmission component to achieve transmission, reducing the number of transmission components in the clutch mechanism 100, thereby further reducing the cost of the circuit breaker.

[0124] In summary, the output shaft 111 is simultaneously mounted on the transmission wheel 3, the first drive wheel 12, and the second drive wheel 22, so that the output shaft 111, the transmission wheel 3, the first drive wheel 12, the second drive wheel 22, and the handle 21 rotate coaxially. This can save the lateral installation space in the clutch mechanism 100 and reduce the production cost of the circuit breaker.

[0125] Furthermore, the output shaft 111 is simultaneously mounted on the first drive wheel 12, the transmission wheel 3, and the second drive wheel 22. This allows the first drive wheel 12, the transmission wheel 3, and the second drive wheel 22 to rotate coaxially while restricting their movement along the radial direction of the output shaft 111. However, it cannot restrict their movement along the axial direction of the output shaft 111. When the first drive wheel 12, the transmission wheel 3, and the second drive wheel 22 move along the axial direction of the output shaft 111, it may cause the first structural block 13 and the second structural block 23 to disengage from the internal tooth groove 31. (Refer to...) Figure 2 The clutch mechanism 100 is positioned such that its axial direction is the first direction X in the figure.

[0126] Based on this, the following improvements can be made to this application:

[0127] In some embodiments, the clutch mechanism 100 may further include a fastener. The fastener is engaged with the second drive wheel 22, such that the fastener connects to or abuts against the end of the output shaft 111 near the second drive wheel 22, for limiting the displacement of the first drive wheel 12, the transmission wheel 3, and the second drive wheel 22 in a first direction X. Herein, the first direction X is the extending direction of the output shaft 111.

[0128] The fastener can be a bolt 5 or a snap ring. Different fasteners require different feature designs on the output shaft 111 and the second drive wheel 22 to accommodate the two types of fasteners.

[0129] Among them, such as Figure 10 As shown, when the fastener is bolt 5, the fastener is connected to the end of the output shaft 111 near the second drive wheel 22.

[0130] Specifically, such as Figure 8 and Figure 10 As shown, the output shaft 111 has a threaded hole 1112 at one end near the second drive wheel 22. A snap-fit ​​block 52 is provided in the through hole of the second drive wheel 22. The bolt 5 is fitted into the through hole of the second drive wheel 22 and screwed into the threaded hole of the output shaft 111. At the same time, the bolt head 51 snaps onto the snap-fit ​​block 52, so that the first drive wheel 12, the transmission wheel 3 and the second drive wheel 22 are pressed onto the motor 11 along the first direction X by the bolt head 51, which restricts the displacement of the first drive wheel 12, the transmission wheel 3 and the second drive wheel 22 in the first direction X, thereby ensuring that the first structural block 13 and the second structural block 23 cannot leave the internal tooth groove 31 along the first direction X.

[0131] Furthermore, when the bolt head 51 is engaged with the engagement block 52, there is a gap between the bolt head 51 and the inner wall of the through hole of the second drive wheel 22 to ensure that the second drive wheel 22 can rotate normally.

[0132] When the fastener is a snap ring, the fastener abuts against the end of the output shaft 111 near the second drive wheel 22.

[0133] Specifically, the second drive wheel 22 has a slot in its through hole so that the retaining spring can be engaged in the slot. When the retaining spring is engaged in the slot, a portion of it will protrude from the slot, forming a step that abuts against the output shaft 111 in the first direction X. This step presses the first drive wheel 12, the transmission wheel 3, and the second drive wheel 22 against the motor 11 in the first direction X, restricting their displacement in the first direction X. This ensures that the first structural block 13 and the second structural block 23 cannot leave the internal tooth groove 31 in the first direction X.

[0134] In summary, by setting fasteners in the clutch mechanism to limit the displacement of the first drive wheel 12, the transmission wheel 3, and the second drive wheel 22 in the first direction X, it is ensured that the first structural block 13 and the second structural block 23 cannot leave the inner tooth groove 31 along the first direction X. This allows the first operating structure 1 to smoothly realize the opening and closing action of the electrically controlled circuit breaker, and allows the second operating structure 2 to smoothly realize the opening and closing action of the manually controlled circuit breaker.

[0135] Furthermore, in order to save longitudinal space while ensuring the service life of the clutch mechanism 100, the following improvements can be made in this application:

[0136] In some embodiments, such as Figure 3 As shown, the side of the transmission wheel 3 closest to the first drive wheel 12 is called the first surface. A protrusion 35 is provided on the first surface. The projected area of ​​the protrusion 35 on the first surface is smaller than the area of ​​the first surface. The first drive wheel 12 presses against the protrusion 35.

[0137] The smaller the gap between the first surface and the first drive wheel 12, the smaller the longitudinal space occupied by the clutch mechanism 100. When the first drive wheel 12 is in contact with the first surface, the gap between the first surface and the first drive wheel 12 is the smallest.

[0138] However, when the first drive wheel 12 is in contact with the first surface, friction will occur between the first drive wheel 12 and the first surface during rotation, causing wear on the first drive wheel 12 and the transmission wheel 3, thus affecting the service life of the clutch mechanism 100. Therefore, a protruding structure 35 is provided on the first surface, and the projected area of ​​the protruding structure 35 on the first surface is smaller than the area of ​​the first surface.

[0139] At this time, the first drive wheel 12 presses against the protruding structure 35, reducing the contact area between the first drive wheel 12 and the transmission wheel 3, thereby reducing the friction between the first drive wheel 12 and the transmission wheel 3, and thus improving the service life of the clutch mechanism 100.

[0140] In summary, the first drive wheel 12 presses against the protruding structure 35 in the transmission wheel 3, which saves longitudinal space while ensuring the service life of the clutch mechanism 100.

[0141] In some embodiments, such as Figure 3 As shown, the transmission wheel 3 may be provided with multiple internal tooth grooves 31.

[0142] When the first operating structure 1 is activated, the transmission wheel 3 rotates with the first drive wheel 12, and the second structural block 23 in the second drive wheel 22 leaves the inner tooth groove 31, causing the second drive wheel 22 to remain stationary. At this time, when the first operating structure 1 stops operating, the transmission wheel 3 stops rotating along with the first drive wheel 12. At this time, the position of the inner tooth groove 31 changes, and the second structural block 23 cannot directly enter the inner tooth groove 31.

[0143] Therefore, after the first operating structure 1 finishes its operation, when the second operating structure 2 starts its operation, the second drive wheel 22 needs to rotate for a period of idle travel until the second structural block 23 reaches the position of the internal tooth groove 31. Only then can the second drive wheel 22 be rotated to drive the transmission wheel 3 to operate.

[0144] Similarly, after the second operating structure 2 is activated, when the first operating structure 1 is activated, the first drive wheel 12 also needs to rotate for a period of idle travel until the first structural block 13 reaches the position of the internal tooth groove 31. Only when the first drive wheel 12 continues to rotate can it drive the transmission wheel 3 to operate.

[0145] Therefore, by adding multiple internal tooth grooves 31 to the transmission wheel 3, the idle travel of the first drive wheel 12 and the second drive wheel 22 can be reduced, and the response time of the first operating structure 1 and the second operating structure 2 in controlling the circuit breaker to perform opening and closing actions can be shortened.

[0146] Secondly, this application provides a circuit breaker, including a closing / opening mechanism and a clutch mechanism as described in any of the above embodiments. The closing / opening mechanism and the clutch mechanism are linked. The clutch mechanism is used to control the closing / opening mechanism to perform closing / opening actions. The closing / opening mechanism performs closing / opening actions to control the on / off state of the circuit breaker.

[0147] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0148] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A clutch mechanism, characterized in that, The utility model relates to a kind of circuit breaker, including: First operating structure, second operating structure and transmission wheel; The first operating structure includes motor and first drive wheel; The motor is connected with the first drive wheel, for driving the first drive wheel to rotate; The second operating structure includes handle and second drive wheel; The handle is connected with the second drive wheel, for driving the second drive wheel to rotate; The transmission wheel is used to drive the opening and closing mechanism of circuit breaker to act; The transmission wheel is provided with inner tooth groove; The first drive wheel is provided with first structure block, and the second drive wheel is provided with second structure block; The first structure block is clamped in the inner tooth groove, so that the first drive wheel drives the transmission wheel to rotate; The second structure block is clamped in the inner tooth groove, so that the second drive wheel drives the transmission wheel to rotate; The first drive wheel is provided with first sliding slot, and the second drive wheel is provided with second sliding slot; During the process that the motor drives the first drive wheel to rotate, the transmission wheel pushes against the second structure block, so that the second structure block slides in the second sliding slot and leaves the inner tooth groove; During the process that the handle drives the second drive wheel to rotate, the transmission wheel pushes against the first structure block, so that the first structure block slides in the first sliding slot and leaves the inner tooth groove.

2. The clutching mechanism of claim 1, wherein The first sliding slot is provided with first elastic member; The first elastic member is connected between the bottom of the first sliding slot and the first structure block; The first elastic member has restoring force, for making the first structure block return to the inner tooth groove; The second sliding slot is provided with second elastic member; The second elastic member is connected between the bottom of the second sliding slot and the second structure block; The second elastic member has restoring force, for making the second structure block return to the inner tooth groove.

3. A clutching mechanism according to claim 2, wherein The first elastic member and the second elastic member are both springs; The first structure block is provided with first limiting column; The second structure block is provided with second limiting column; The first elastic member is sleeved on the first limiting column; The second elastic member is sleeved on the second limiting column.

4. The clutching mechanism of claim 2, wherein The motor has output shaft; The output shaft is provided with first clamping structure; The first drive wheel is provided with second clamping structure; The first clamping structure and the second clamping structure are connected in cooperation, so that the output shaft can drive the first drive wheel to rotate.

5. The clutching mechanism of claim 2, wherein, The end of the handle close to the second drive wheel is provided with third clamping structure; The second drive wheel is provided with fourth clamping structure; The third clamping structure and the fourth clamping structure are connected in cooperation, so that the handle can drive the second drive wheel to rotate.

6. The clutching mechanism of claim 4, wherein, The output shaft is sleeved on the transmission wheel, the first drive wheel and the second drive wheel simultaneously, so that the output shaft, the transmission wheel, the first drive wheel, the second drive wheel and the handle rotate coaxially.

7. A clutching mechanism according to claim 6, wherein The clutch mechanism further includes fastener; The fastener is clamped on the second drive wheel, so that the fastener is connected or abuts on the end of the output shaft close to the second drive wheel, for limiting the displacement of the first drive wheel, the transmission wheel and the second drive wheel in the first direction. The first direction is the extension direction of the output shaft.

8. A clutching mechanism according to claim 7, wherein The first face of the transmission wheel is close to the first driving wheel; The first face is provided with a convex structure; The projection area of the convex structure on the first face is less than the area of the first face; The first driving wheel is pressed on the convex structure.

9. A clutching mechanism according to any one of claims 1-8, characterized in that The transmission wheel is provided with a plurality of inner tooth grooves.

10. A circuit breaker characterized by, Comprise: The clutch mechanism and the opening and closing mechanism of any one of claims 1-9; The opening and closing mechanism and the clutch mechanism are linked; The clutch mechanism is used for controlling the opening and closing action of the opening and closing mechanism; The opening and closing action of the opening and closing mechanism is used for controlling the on-off of the circuit breaker.

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