An intelligent miniature circuit breaker button mechanism

Abstract

This invention provides an intelligent miniature circuit breaker button mechanism, comprising a base installed inside the circuit breaker housing and a button slidably mounted on the base. The button is linked to the circuit breaker operating mechanism, and a guide groove is provided on the side of the button. A linear actuator and a locking rod are mounted on the base. The linear actuator is linked to the button and can drive the button to translate on the base in the direction of circuit breaker closing. One end of the locking rod is rotatably mounted in a preset hole on the base, and the other end cooperates with the guide groove to lock the button when the circuit breaker is closed. This invention only requires controlling the operation of the linear actuator to drive the button to slide, thereby linking the button with the circuit breaker operating mechanism. The closing and opening of the circuit breaker can be achieved by the cooperation of the guide groove on the button and the locking rod. The entire mechanism has a simple structure, few parts, small footprint, convenient installation, and reliable and stable operation.

Description

Technical Field

[0001] This invention belongs to the field of low-voltage electrical appliance technology, specifically relating to an intelligent miniature circuit breaker button mechanism. Background Technology

[0002] The low-voltage electrical appliance industry is now moving towards intelligentization, as exemplified by smart homes and 5G communications, with 5G network construction booming. Currently, ordinary intelligent miniature circuit breakers in the power distribution industry typically use a motor-driven multi-stage gear set to directly drive the operating mechanism for automatic opening and closing. The push-button mechanism, on the other hand, is only used for manual operation, resulting in numerous parts, large space requirements, and unreliable operation over time.

[0003] For example, Chinese patent CN202120573346.6 discloses a circuit breaker, which relates to the field of electrical switch technology. It includes a housing and an electric mechanism and an operating mechanism disposed within the housing. The electric mechanism includes a motor, a drive gear, and a trip unit. The operating mechanism includes a handle. The motor can drive the drive gear to rotate to make the handle rotate forward to achieve closing. The motor can drive the trip unit to rotate to make the handle rotate in reverse to achieve opening. It also includes a positioning member disposed within the housing. The positioning member is provided with a limiting part and a supporting part. The limiting part is used to limit the installation position of the positioning member. When closing or opening is achieved, the motor is in a de-energized state, and the drive gear can rotate under inertia to abut and fix against the supporting part. This circuit breaker uses a motor-driven multi-stage gear set to directly drive the operating mechanism for automatic opening and closing. Not only does it have many parts and occupy a large space, which does not conform to the trend of miniaturization of circuit breakers and cannot meet the miniaturization and intelligence requirements of 5G communication cabinets, but also, when the circuit breaker is switched between manual and automatic, there is collision and wear between the gears. Over time, the operation becomes unreliable and will affect the automatic opening and closing of the circuit breaker. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide an intelligent miniature circuit breaker button mechanism. The button of the button mechanism can slide unidirectionally under the drive of a linear actuator, thereby actuating the circuit breaker's operating mechanism and realizing the automatic opening and closing of the circuit breaker. This allows the circuit breaker to save a large number of parts, occupy less space, and operate reliably.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A smart miniature circuit breaker button mechanism includes a base installed inside the circuit breaker housing and a button slidably mounted on the base (one end of the button extends into the circuit breaker housing and can slide left and right on the base, while the other end is located outside the circuit breaker housing). The button is linked to the circuit breaker operating mechanism, and a guide groove is provided on the side of the button. A linear actuator and a locking rod are installed on the base. The linear actuator is linked to the button and can drive the button to translate on the base in the direction of circuit breaker closing (when closing, the linear actuator pulls the button to translate in the direction of circuit breaker closing, and at the same time, the button drives the circuit breaker operating mechanism to close). One end of the locking rod is rotatably installed in a preset hole on the base, and the other end cooperates with the guide groove and can lock the button when closing, thus completing the closing.

[0007] Furthermore, the guide groove is a closed-loop groove located on the front side of the button, which is composed of a first groove, a second groove, and a third groove in sequence. The first groove is inclined on the left side of the guide groove (inclined from bottom to top), the second groove is located on the right side of the guide groove (vertically positioned, its left side wall can press against the locking rod after the circuit breaker operating mechanism is closed, thereby preventing the button from popping out of the housing), and the third groove is located on the lower side of the guide groove. The upper end of the first groove is connected to the upper end of the second groove, the lower end of the second groove is connected to the right end of the third groove, and the left end of the third groove is connected to the lower end of the first groove. The second groove is used to lock the button when the circuit breaker is closed. The right end of the locking rod is located in the guide groove and can slide clockwise in the guide groove.

[0008] Furthermore, the left side wall of the second slide groove is recessed to the left to form a limiting groove, which is used to lock the locking lever after the circuit breaker operating mechanism is closed, thereby making the button locked by the locking lever and difficult to pop out of the housing.

[0009] Furthermore, the depth of the second chute is greater than the depth of the upper end of the first chute, and the depth of the third chute is greater than the depth of the second chute; the depth of the lower end of the first chute is greater than the depth of the third chute; stepped guide steps are provided at the junctions of the first and second chutes, the second and third chutes, and the third and first chutes; the guide steps slope from the chute with the smaller depth to the chute with the larger depth, that is, the guide step at the junction of the first and second chutes is an inclined surface that slopes from the bottom of the first chute to the bottom of the second chute, the guide step at the junction of the second and third chutes is an inclined surface that slopes from the bottom of the second chute to the bottom of the third chute, and the guide step at the junction of the third chute and the first chute is an inclined surface that slopes from the bottom of the third chute to the bottom of the lower end of the first chute.

[0010] Furthermore, there are two guide steps at the junction of the first and second slides, arranged along the direction from the first slide to the second slide.

[0011] Furthermore, the guide groove has a B-shaped structure, which is arranged laterally (with the curved side on top and the straight side on the bottom).

[0012] Furthermore, the linear actuator can be an electromagnetic actuator. A conventional electromagnetic actuator is used. After the electromagnetic actuator is energized, the moving iron core moves toward the stationary iron core and attracts it. The moving iron core pulls the button to move to the left (towards closing), which drives the actuator to move and thus pushes the operating mechanism to close the circuit.

[0013] Furthermore, the linear driver can also be a linear motor. A conventional linear motor is selected. After the linear motor is powered on, pulling the button moves it to the left (towards closing the circuit breaker), which drives the actuator to move and then pushes the operating mechanism to close the circuit breaker.

[0014] Furthermore, the button is linked to the circuit breaker operating mechanism via an actuator; the actuator includes a transmission wheel, a first connecting rod, and a second connecting rod; the transmission wheel is rotatably mounted on the base via a pre-set axle at its center, and a first connecting hole and a second connecting hole are provided on the edge of the transmission wheel; the left end of the first connecting rod is rotatably connected to the circuit breaker operating mechanism, and the right end is rotatably connected to the first connecting hole; the left end of the second connecting rod is rotatably connected to the second connecting hole, and the right end is rotatably connected to the pre-set mounting hole on the left end of the button.

[0015] Furthermore, the actuator also includes a torsion spring, which is sleeved on the axle of the drive wheel and located between the drive wheel and the base. One torsion arm of the torsion spring is mounted on the drive wheel, and the other torsion arm is mounted on the base, for providing thrust for the button to slide out of the circuit breaker housing.

[0016] Furthermore, the intelligent miniature circuit breaker button mechanism also includes a pull rod spring, one end of which is installed on the inner wall of the circuit breaker housing, and the other end is pressed on the locking pull rod (pressed on the left end of the locking pull rod), so that the locking pull rod is in reliable contact with the bottom of the guide groove of the button.

[0017] The beneficial effects of this invention are as follows:

[0018] (1) Simple structure: This invention only requires controlling the linear drive to drive the button to slide, and the circuit breaker can be opened and closed by the cooperation of the guide groove set on the button and the locking rod.

[0019] (2) Few parts: This invention only requires an electromagnet, a button, a locking lever, and a compression spring to realize the circuit breaker's closing and opening functions.

[0020] (3) Small space occupation, easy installation, reliable and stable: Because the present invention has a simple structure and few parts, and only simple sliding, it occupies little space and is easy to install, while being able to operate reliably and stably. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the intelligent miniature circuit breaker button mechanism described in this invention;

[0023] Figure 2 This is a schematic diagram of the intelligent miniature circuit breaker button mechanism in the closed state according to the present invention;

[0024] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 This is a schematic diagram of the intelligent miniature circuit breaker button mechanism in the open state according to the present invention;

[0026] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0027] Figure 6 This is a schematic diagram of the button structure in the intelligent miniature circuit breaker button mechanism described in this invention;

[0028] Figure 7 This is a schematic diagram showing the connection between the button and the locking lever in the button mechanism of the intelligent miniature circuit breaker described in this invention;

[0029] The figure shows: 1-button, 2-locking lever, 3-lever spring, 4-linear actuator, 5-base, 6-actuator, 7-circuit breaker housing. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The described embodiments are merely some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings of this specification are merely for illustrative purposes to aid those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] Example 1:

[0034] like Figure 1-7 As shown, an intelligent miniature circuit breaker button mechanism of the present invention includes a base 5, a button 1, a linear actuator 4, a locking lever 2, and an actuator 6.

[0035] The base 5 is installed on the inner wall of the circuit breaker housing 7, serving as a support and mounting base.

[0036] The left end of the button 1 extends into the circuit breaker housing 7 (linked with the circuit breaker operating mechanism and the linear actuator 4 respectively) and is slidably mounted in a preset groove on the base 5 (the groove is composed of a structural rib arranged horizontally on the base 5). The right end of the button 1 is located outside the circuit breaker housing 7. The button 1 is limited by the groove in the base 5, so that the button 1 can only perform translational movement in the left and right directions within the base 5.

[0037] A mounting hole 1f is provided at the top left end of button 1 for mounting the left end of locking lever 2 (e.g., Figure 6 and Figure 7 As shown), a guide groove is provided on the front side of the left end of button 1.

[0038] The guide groove is a closed-loop groove located on the front side of button 1. The guide groove has a B-shaped structure, which is arranged laterally with the curved side on top and the straight side on the bottom (e.g., Figure 6 (As shown).

[0039] like Figure 6 As shown, the guide chute is composed of a first chute 1a, a second chute 1b, and a third chute 1c in sequence. The first chute 1a is inclined on the left side of the guide chute (inclining upwards), the second chute 1b is vertically positioned on the right side of the guide chute (its left side wall can press against the right end of the locking lever 2 after the circuit breaker operating mechanism is closed, thus preventing the button 1 from ejecting from the circuit breaker housing 7), and the third chute 1c is located on the lower side of the guide chute. The upper end of the first chute 1a is connected to the upper end of the second chute 1b, the lower end of the second chute 1b is connected to the right end of the third chute 1c, and the left end of the third chute 1c is connected to the lower end of the first chute 1a, thus forming a closed-loop chute. The second chute 1b is used to lock the button 1 through its limiting groove 1d (which cooperates with the locking lever 2) when the circuit is closed. The right end of the locking lever 2 is located inside the guide chute and can slide clockwise within the guide chute.

[0040] The left side wall of the second slide groove 1b is recessed to the left to form a limiting groove 1d. The limiting groove 1d is used to lock the right end of the locking lever 2 after the circuit breaker operating mechanism is closed, so that the button 1 is locked by the locking lever 2 and is difficult to pop out of the circuit breaker housing 7.

[0041] The depth of the second slide 1b (upper end) is greater than the depth of the upper end of the first slide 1a, and the depth of the third slide 1c (right end) is greater than the depth of the second slide 1b (lower end); the depth of the lower end of the first slide 1a is greater than the depth of the third slide 1c (left end).

[0042] At the junctions of the first slide 1a and the second slide 1b, the second slide 1b and the third slide 1c, and the third slide 1c and the first slide 1a, stepped guide steps 1e are respectively provided. Two guide steps 1e are provided at the junction of the first slide 1a and the second slide 1b, arranged along the direction from the first slide 1a to the second slide 1b. The guide steps 1e slope from the shallower slide to the deeper slide, meaning that the guide steps 1e at the junction of the first slide 1a and the second slide 1b slope from the bottom of the upper part of the first slide 1a to the bottom of the upper part of the second slide 1b. The inclined plane (allowing the right end of the locking lever 2 to easily slide from the upper end of the first slide groove 1a into the second slide groove 1b), the guide step 1e at the junction of the second slide groove 1b and the third slide groove 1c is an inclined plane that slopes from the bottom of the second slide groove 1b (lower end) to the bottom of the third slide groove 1c (right end) (allowing the right end of the locking lever 2 to easily slide from the second slide groove 1b to the third slide groove 1c), the guide step 1e at the junction of the third slide groove 1c and the first slide groove 1a is an inclined plane that slopes from the bottom of the third slide groove 1c to the bottom of the lower end of the first slide groove 1a (allowing the right end of the locking lever 2 to easily slide from the third slide groove 1c to the lower end of the first slide groove 1a).

[0043] The linear actuator 4 is installed on the base 5 inside the circuit breaker housing 7 and is located to the left of the button 1. It is used to pull the button 1 to move to the left. The linear actuator 4 is a conventional electromagnetic actuator, which mainly includes a hollow housing, a coil wound outside the housing, a stationary iron core fixed inside the housing on the right side, a moving iron core slidably installed inside the housing on the right side, and a pull rod. A return spring is provided between the moving iron core and the stationary iron core. The housing is installed on the base and is located to the left of the button. One end of the pull rod is fixed to the right side of the moving iron core, and the other end slides out of the right side of the housing and connects to the left end of the button 1. When the coil is energized, the moving iron core is magnetized and moves towards the stationary iron core until it is attracted to the stationary iron core. At the same time, the moving iron core pulls the pull rod to the left, and the pull rod pulls the button 1 to the left (towards the closing direction) in sync, which drives the actuator 6 to move, thereby pushing the circuit breaker operating mechanism to close.

[0044] The locking lever 2 has a U-shaped structure. Its left end is rotatably installed in a preset hole on the base 5, and its right end cooperates with the guide groove (sliding clockwise in the guide groove) and can lock the button 1 when the circuit breaker operating mechanism is closed to complete the closing.

[0045] The actuator 6 includes a transmission wheel 61, a first connecting rod 62, a second connecting rod 63, and a torsion spring 64.

[0046] The transmission wheel 61 is rotatably mounted on the base 5 via a pre-set axle at its center. A first connecting hole (located on the left side of the transmission wheel 61) and a second connecting hole (located on the right side of the transmission wheel 61) are provided on the edge of the transmission wheel 61.

[0047] The left end of the first connecting rod 62 is rotatably connected to the circuit breaker operating mechanism (trip lever), and the right end is rotatably connected to the first connecting hole, which is used to pull the circuit breaker operating mechanism to rotate and open the circuit breaker.

[0048] The left end of the second connecting rod 63 is rotatably connected to the second connecting hole, and the right end is rotatably connected to the mounting hole 1f of the button 1, which is used to drive the transmission wheel 6 to rotate.

[0049] The torsion spring 64 is sleeved on the axle of the transmission wheel 61 and located between the transmission wheel 61 and the base 5. It has two torsion arms, one of which is mounted on the transmission wheel 61 and the other is mounted on the base 5, and is used to provide thrust for the button 1 to slide out of the circuit breaker housing 7.

[0050] Working principle:

[0051] Automatic closing:

[0052] When the circuit breaker is in the open state (e.g.) Figure 5 As shown, when the right end of the locking lever is located at the lower end of the first slide groove 1a of the guide slide groove, it automatically switches to the closed state, i.e., from Figure 4 The shown state will automatically change to Figure 2In the state shown, the transition process is as follows:

[0053] The linear actuator 4 is energized and engaged, then immediately de-energized and released (i.e., the coil of the electromagnetic actuator is energized, the moving iron core (electromagnet) is magnetized and moves towards the stationary iron core (moves to the left) until it engages with the stationary iron core, and after engaging, the linear actuator 4 is immediately de-energized). During this process, the moving iron core moves and pulls the lever to the left, and the lever simultaneously pulls the button 1 to the left (towards closing). The button 1 drives the transmission wheel 61 of the actuator 6 to rotate clockwise through the second lever 63 (the torsion spring 64 is compressed and stores energy). While the transmission wheel 61 rotates clockwise, it pushes the circuit breaker operating mechanism to rotate (counterclockwise, the main spring of the operating mechanism is compressed and stores energy) through the first lever 62, so that the moving contact and the stationary contact of the circuit breaker operating mechanism are re-adhered, thereby closing the operating mechanism and bringing the circuit breaker to the closed position.

[0054] As button 1 moves to the left (towards closing), the right end of locking lever 2 (the end that engages with the guide groove) slides along the first groove 1a (from the lower end of the first groove 1a to the upper end), then reaches the stepped guide step 1e at the junction of the first groove 1a and the second groove 1b. Following the guide step 1e, it slides down to the second groove 1b. At this point, the electromagnet has engaged and released (after the moving iron core and the stationary iron core are engaged, the power is cut off, the moving iron core loses its magnetism, and the moving iron core is in a movable state). At this time, button 1 is transmitting... The moving wheel 61 slides to the right (in the opening direction) under the counter-thrust of the operating mechanism (the counter-thrust is mainly provided by the torsion spring 64 and the main spring of the operating mechanism, and at this time the moving iron core will also move a certain distance to the right under the pull of button 1). This sliding displacement is very small and will not affect the reliable contact between the moving contact and the stationary contact. At this time, the right end of the locking lever 2 (the end that cooperates with button 1) moves to the limit groove 1d in the second slide groove 1b (relatively to the left). Button 1 is locked in place by the limit groove 1d (difficult to move), thereby making the moving contact and the stationary contact maintain reliable contact, and the circuit breaker closes successfully.

[0055] Automatic tripping:

[0056] When the circuit breaker changes from the closed state (e.g.) Figure 3 As shown, when the right end of the locking lever 2 is located in the limiting groove 1d of the guide slide, it automatically switches to the open state, i.e., from Figure 2 The shown state will automatically change to Figure 4 In the state shown, the transition process is as follows:

[0057] The linear actuator 4 is energized again and engaged in position, then immediately de-energized and released (i.e., the coil of the electromagnetic actuator is energized, the moving iron core (electromagnet) is magnetized and moves towards the stationary iron core (moves to the left) until it engages with the stationary iron core, and after engaging in position, the linear actuator 4 is immediately de-energized). During this process, the moving iron core pulls the lever to the left, and at the same time, the lever drives the button 1 to move to the left (towards the closing direction). At this time, the right end of the locking lever 2 moves to the right relative to the button 1 and disengages from the limiting groove 1d. The linear actuator 4 is de-energized, and then the right end of the locking lever 2 slides along the stepped guide step 1e at the junction of the second slide groove 1b and the third slide groove 1c under its own gravity into the third slide groove 1c. At this time, the locking lever 2 releases the lock on the upper limit groove 1d of the button 1 (button unlocks). The button 1 slides to the right (towards the opening direction) under the counter-thrust of the transmission wheel 61 and the operating mechanism and pops out of the circuit breaker housing 7. The circuit breaker is successfully opened.

[0058] As for manual opening and closing, it is done in the same way as usual. Manually push and pull button 1, and use button 1 to drive the operating mechanism to open and close the circuit breaker.

[0059] Example 2:

[0060] The difference between this embodiment and Embodiment 1 is that:

[0061] The linear actuator 4 used in this embodiment is a linear motor. A conventional linear motor is selected. The main linear motor moves to pull the button 1 to the left (towards closing) by sliding the mover. That is, the mover of the linear motor is connected to the left end of the button 1. After the linear motor is powered on, the mover slides to the left and pulls the button 1 to the left (towards closing), which drives the actuator 6 to move, thereby pushing the operating mechanism to close the circuit.

[0062] Its automatic closing principle and automatic opening principle are the same as those in the embodiment.

[0063] When the circuit breaker closes automatically, the linear motor is first powered on and pulls button 1 to the left, pushing the operating mechanism to close the circuit breaker. Similarly, the right end of the locking lever 2 slides from the first slide groove 1a into the second slide groove 1b. Then the linear motor is powered off, and the moving part is in a free-moving state (it can slide when the button 1 is pulled). The button 1 slides to the right (in the opening direction) a certain distance under the counter-thrust of the transmission wheel 61 and the operating mechanism (driving the moving part of the linear motor to slide), so that the right end of the locking lever 2 is just stuck in the limit groove 1d, and the button 1 is locked, completing the circuit breaker closing.

[0064] When the circuit breaker trips automatically, the linear motor is first energized, pulling button 1 to move a certain distance to the left. The right end of the locking lever 2 moves to the right and disengages from the limiting groove 1d. The linear motor is then de-energized. Under its own weight, the right end of the locking lever 2 slides along the stepped guide step 1e at the junction of the second slide groove 1b and the third slide groove 1c into the third slide groove 1c. At this time, the locking lever 2 releases its lock on the upper limit groove 1d of button 1 (button unlocking). Under the counter-thrust of the transmission wheel 61 and the operating mechanism, button 1 slides to the right (in the tripping direction) and pops out of the circuit breaker housing 7, thus successfully tripping the circuit breaker.

[0065] Example 3:

[0066] The difference between this embodiment and Embodiment 1 or Embodiment 2 is that:

[0067] To ensure that the locking lever 2 maintains reliable contact with the bottom of the guide groove during its cyclic sliding within the guide groove.

[0068] The intelligent miniature circuit breaker button mechanism also includes a pull rod spring 3, one end of which is installed on the inner wall of the circuit breaker housing 7, and the other end is pressed on the locking pull rod 2 (pressed on the left end of the locking pull rod 2).

[0069] Other aspects of this invention that are not detailed herein are all conventional techniques known to those skilled in the art.

[0070] It should be noted that the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0071] The scope of protection of this invention is not limited to the technical solutions disclosed in the specific embodiments. Any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the technical essence of this invention shall fall within the scope of protection of this invention.

Claims

1. A smart miniature circuit breaker button mechanism, comprising a base installed inside the circuit breaker housing and a button slidably mounted on the base, the button being linked to the circuit breaker operating mechanism, characterized in that... A guide groove is provided on the side of the button. The guide groove is a closed-loop groove set on the front side of the button, which is composed of a first groove, a second groove, and a third groove. The first groove is inclinedly set on the left side of the guide groove, the second groove is set on the right side of the guide groove, and the third groove is set on the lower side of the guide groove. The upper end of the first groove is connected to the upper end of the second groove, the lower end of the second groove is connected to the right end of the third groove, and the left end of the third groove is connected to the lower end of the first groove. The second groove is used to lock the button when the circuit breaker is closed. The left side wall of the second groove is recessed to the left to form a limiting groove. A linear actuator and a locking rod are installed on the base. The linear actuator is linked with the button and can drive the button to move horizontally on the base in the direction of circuit breaker closing. The right end of the locking rod is set in the guide groove and can slide clockwise in the guide groove. One end of the locking rod is rotatably installed in a preset hole on the base, and the other end cooperates with the guide groove and can lock the button when the circuit breaker is closed.

2. The intelligent miniature circuit breaker button mechanism according to claim 1, characterized in that... The depth of the second slide groove is greater than the depth of the upper end of the first slide groove, and the depth of the third slide groove is greater than the depth of the second slide groove; the depth of the lower end of the first slide groove is greater than the depth of the third slide groove. Stepped guide steps are provided at the junctions of the first and second slides, the second and third slides, and the third and first slides; the guide steps are inclined from the slide with the shallowest depth to the slide with the greatest depth.

3. The intelligent miniature circuit breaker button mechanism according to claim 1, characterized in that... The number of guide steps at the junction of the first and second slides is two, and they are arranged along the direction from the first slide to the second slide.

4. The intelligent miniature circuit breaker button mechanism according to claim 1, characterized in that... The guide groove has a b-shaped structure.

5. The intelligent miniature circuit breaker button mechanism according to claim 1, characterized in that... The linear driver is an electromagnetic driver or a linear motor.

6. The intelligent miniature circuit breaker button mechanism according to any one of claims 1-5, characterized in that... The button is linked to the circuit breaker operating mechanism via an actuator; the actuator includes a transmission wheel, a first link, and a second link. The transmission wheel is rotatably mounted on the base via a wheel axle pre-set at its center, and a first connecting hole and a second connecting hole are provided on the edge of the transmission wheel; The left end of the first connecting rod is rotatably connected to the circuit breaker operating mechanism, and the right end is rotatably connected to the first connecting hole; The left end of the second connecting rod is rotatably connected to the second connecting hole, and the right end is rotatably connected to the preset mounting hole on the left end of the button.

7. The intelligent miniature circuit breaker button mechanism according to claim 6, characterized in that... The actuator also includes a torsion spring, which is sleeved on the axle of the transmission wheel and located between the transmission wheel and the base. One torsion arm of the torsion spring is mounted on the transmission wheel, and the other torsion arm is mounted on the base.

8. The intelligent miniature circuit breaker button mechanism according to any one of claims 1-5, characterized in that... It also includes a pull rod spring, one end of which is mounted on the inner wall of the circuit breaker housing, and the other end is pressed against the locking pull rod.

Images